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Amendment to code of fair competition for the preformed plastic products industry as approved on April 25, 1935
| Amendment to code of fair competition for the preformed plastic products industry as approved on April 25, 1935 |
| Pubbl/distr/stampa | Washington : , : United States Government Printing Office, , 1935 |
| Descrizione fisica | 1 online resource (3 pages) |
| Soggetto topico |
Plastics - Law and legislation - United States
Plastics - Molding |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Preformed plastic products industry |
| Record Nr. | UNINA-9910705240703321 |
| Washington : , : United States Government Printing Office, , 1935 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Amendment to code of fair competition for the preformed plastic products industry as approved on June 23, 1934
| Amendment to code of fair competition for the preformed plastic products industry as approved on June 23, 1934 |
| Pubbl/distr/stampa | Washington : , : United States Government Printing Office, , 1934 |
| Descrizione fisica | 1 online resource (5 pages) |
| Soggetto topico |
Plastics - Law and legislation - United States
Plastics - Molding |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Preformed plastic products industry |
| Record Nr. | UNINA-9910705230103321 |
| Washington : , : United States Government Printing Office, , 1934 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Automotive plastics
| Automotive plastics |
| Pubbl/distr/stampa | Dearborn, Mich., : Society of Manufacturing Engineers, c2000-c2001 |
| Descrizione fisica | 1 online resource |
| Disciplina | 668 |
| Soggetto topico |
Plastics in automobiles
Plastics - Molding Plastics industry and trade |
| Soggetto genere / forma | Periodicals. |
| Formato | Materiale a stampa |
| Livello bibliografico | Periodico |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISA-996335984703316 |
| Dearborn, Mich., : Society of Manufacturing Engineers, c2000-c2001 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. di Salerno | ||
| ||
Code of fair competition for the preformed plastic products industry as approved on March 23, 1934
| Code of fair competition for the preformed plastic products industry as approved on March 23, 1934 |
| Pubbl/distr/stampa | Washington : , : United States Government Printing Office, , 1934 |
| Descrizione fisica | 1 online resource (409-422 pages) |
| Soggetto topico |
Plastics - Law and legislation - United States
Plastics - Molding |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Altri titoli varianti | Preformed plastic products industry |
| Record Nr. | UNINA-9910705230203321 |
| Washington : , : United States Government Printing Office, , 1934 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Composite sheet forming / edited by D. Bhattacharyya
| Composite sheet forming / edited by D. Bhattacharyya |
| Pubbl/distr/stampa | Amsterdam ; New York : Elsevier, 1997 |
| Descrizione fisica | xv, 531 p. : ill. ; 25 cm |
| Disciplina | 668.494 |
| Altri autori (Persone) | Bhattacharyya, D. |
| Collana | Composite materials series ; 11 |
| Soggetto topico |
Plastics - Molding
Polymeric composites |
| ISBN | 0444826416 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNISALENTO-991002285809707536 |
| Amsterdam ; New York : Elsevier, 1997 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. del Salento | ||
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Computer modeling for injection molding [[electronic resource] ] : simulation, optimization, and control / / edited by Huamin Zhou
| Computer modeling for injection molding [[electronic resource] ] : simulation, optimization, and control / / edited by Huamin Zhou |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Hoboken, N.J., : Wiley, c2013 |
| Descrizione fisica | 1 online resource (424 p.) |
| Disciplina | 668.4/1200113 |
| Altri autori (Persone) | ZhouHuamin |
| Soggetto topico |
Injection molding of plastics - Computer simulation
Injection molding of plastics - Computer-aided design Plastics - Molding |
| ISBN |
1-118-44492-2
1-283-97789-3 1-118-44488-4 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | pt. I. Background -- pt. II. Simulation -- pt. III. Optimization -- pt. IV. Process control. |
| Record Nr. | UNINA-9910132531703321 |
| Hoboken, N.J., : Wiley, c2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Computer modeling for injection molding : simulation, optimization, and control / / edited by Huamin Zhou
| Computer modeling for injection molding : simulation, optimization, and control / / edited by Huamin Zhou |
| Edizione | [1st edition] |
| Pubbl/distr/stampa | Hoboken, N.J., : Wiley, c2013 |
| Descrizione fisica | 1 online resource (424 p.) |
| Disciplina | 668.4/1200113 |
| Altri autori (Persone) | ZhouHuamin |
| Soggetto topico |
Injection molding of plastics - Computer simulation
Injection molding of plastics - Computer-aided design Plastics - Molding |
| ISBN |
9781118444924
1118444922 9781283977890 1283977893 9781118444887 1118444884 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto | pt. I. Background -- pt. II. Simulation -- pt. III. Optimization -- pt. IV. Process control. |
| Record Nr. | UNINA-9910823246503321 |
| Hoboken, N.J., : Wiley, c2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Designing Plastic Parts for Assembly / / Paul A. Tres
| Designing Plastic Parts for Assembly / / Paul A. Tres |
| Autore | Tres Paul A |
| Edizione | [9th ed.] |
| Pubbl/distr/stampa | Munich : , : Hanser, , 2021 |
| Descrizione fisica | 1 online resource |
| Disciplina | 668.4 |
| Soggetto topico |
Plastics - Molding
Machine parts |
| ISBN |
9781523145010
1523145013 9781569908211 1569908214 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Contents -- Foreword to the Ninth Edition -- Preface to the Ninth Edition -- Foreword to the First Edition -- Preface to the First Edition -- Acknowledgments -- 1 Understanding Plastic Materials -- 1.1 Basic Resins -- 1.1.1 Thermoplastics -- 1.1.2 Thermosets -- 1.2 Basic Structures -- 1.2.1 Crystalline -- 1.2.2 Amorphous -- 1.2.3 Liquid Crystal Polymer (LCP) -- 1.2.4 New Polymer Technologies -- 1.2.4.1 Inherently Conductive Polymers (ICP) -- 1.2.4.2 Electro-Optic Polymers (EOP) -- 1.2.4.3 Biopolymers -- 1.3 Homopolymer vs. Copolymer -- 1.4 Reinforcements -- 1.5 Fillers -- 1.5.1 Glass Spheres -- 1.5.1.1 Microsphere Properties -- 1.5.1.2 Compounding -- 1.5.1.3 Injection Molding -- 1.5.1.4 Mechanical Properties in Injection-Molded Thermoplastic Applications -- 1.6 Additives -- 1.7 Physical Properties -- 1.7.1 Density and Specific Gravity -- 1.7.2 Elasticity -- 1.7.2.1 Case History: Elasticity and Denier -- 1.7.3 Plasticity -- 1.7.4 Ductility -- 1.7.5 Toughness -- 1.7.6 Brittleness -- 1.7.7 Notch Sensitivity -- 1.7.8 Isotropy -- 1.7.9 Anisotropy -- 1.7.10 Water Absorption -- 1.7.11 Mold Shrinkage -- 1.8 Mechanical Properties -- 1.8.1 Normal Stress -- 1.8.2 Normal Strain -- 1.8.3 Stress-Strain Curve -- 1.9 Creep -- 1.9.1 Introduction -- 1.9.2 Creep Experiments -- 1.9.3 Creep Curves -- 1.9.4 Stress-Relaxation -- 1.10 Impact Properties -- 1.11 Thermal Properties -- 1.11.1 Melting Point -- 1.11.2 Glass Transition Temperature -- 1.11.3 Heat Deflection Temperature -- 1.11.4 Coefficient of Thermal Expansion -- 1.11.5 Thermal Conductivity -- 1.11.6 Thermal Influence on Mechanical Properties -- 1.11.7 Case History: Planetary Gear Life Durability -- 2 Understanding Safety Factors -- 2.1 What Is a Safety Factor -- 2.2 Using the Safety Factors -- 2.2.1 Design Safety Factors -- 2.2.1.1 Design Static Safety Factor -- 2.2.1.2 Design Dynamic Safety Factor.
2.2.1.3 Design Time-Related Safety Factor -- 2.2.2 Material Properties Safety Factor -- 2.2.3 Processing Safety Factors -- 2.2.4 Operating Condition Safety Factor -- 3 Strength of Material for Plastics -- 3.1 Tensile Strength -- 3.1.1 Proportional Limit -- 3.1.2 Elastic Stress Limit -- 3.1.3 Yield Stress -- 3.1.4 Ultimate Stress -- 3.2 Compressive Stress -- 3.3 Shear Stress -- 3.4 Torsion Stress -- 3.5 Elongations -- 3.5.1 Tensile Strain -- 3.5.2 Compressive Strain -- 3.5.3 Shear Strain -- 3.6 True Stress and Strain vs. Engineering Stress and Strain -- 3.7 Poisson's Ratio -- 3.8 Modulus of Elasticity -- 3.8.1 Young's Modulus -- 3.8.2 Tangent Modulus -- 3.8.3 Secant Modulus -- 3.8.4 Creep (Apparent) Modulus -- 3.8.5 Shear Modulus -- 3.8.6 Flexural Modulus -- 3.8.7 The Use of Various Moduli -- 3.9 Stress Relations -- 3.9.1 Introduction -- 3.9.2 Experiment -- 3.9.3 Equivalent Stress -- 3.9.4 Maximum Normal Stress -- 3.9.5 Maximum Normal Strain -- 3.9.6 Maximum Shear Stress -- 3.9.7 Maximum Deformation Energy -- 3.10 ABCs of Plastic Part Design -- 3.10.1 Constant Wall -- 3.10.2 Fillets -- 3.10.3 Boss Design -- 3.10.4 Rib Design -- 3.10.5 Case History: Ribs -- 3.11 Automotive Case History: Airbag Module's Plastic Cover Assembly -- 3.12 Conclusions -- 4 Nonlinear Considerations -- 4.1 Material Considerations -- 4.1.1 Linear Material -- 4.1.2 Nonlinear Materials -- 4.2 Geometry -- 4.2.1 Linear Geometry -- 4.2.2 Nonlinear Geometry -- 4.3 Finite Element Analysis (FEA) -- 4.3.1 FEA Method Application -- 4.3.2 Using FEA Method -- 4.3.3 Most Common FEA Codes -- 4.4 Conclusions -- 5 Welding Techniques for Plastics -- 5.1 Ultrasonic Welding -- 5.1.1 Ultrasonic Equipment -- 5.1.2 Horn Design -- 5.1.3 Ultrasonic Welding Techniques -- 5.1.4 Control Methods -- 5.1.4.1 Common Issues with Welding -- 5.1.4.2 Joint Design -- 5.1.4.3 Butt Joint Design. 5.1.4.4 Shear Joint Design -- 5.1.4.5 Torsional Ultrasonic Welding -- 5.1.4.6 Case History: Welding Dissimilar Polymers -- 5.2 Ultrasonic (Heat) Staking -- 5.2.1 Standard Stake Design -- 5.2.2 Flush Stake Design -- 5.2.3 Spherical Stake Design -- 5.2.4 Hollow (Boss) Stake Design -- 5.2.5 Knurled Stake Design -- 5.3 Ultrasonic Spot Welding -- 5.4 Ultrasonic Swaging -- 5.5 Ultrasonic Stud Welding -- 5.6 Spin Welding -- 5.6.1 Process -- 5.6.2 Equipment -- 5.6.3 Welding Parameters -- 5.6.4 Joint Design -- 5.7 Hot Plate Welding -- 5.7.1 Process -- 5.7.2 Joint Design -- 5.8 Vibration Welding -- 5.8.1 Process -- 5.8.2 Equipment -- 5.8.3 Joint Design -- 5.8.4 Common Issues with Vibration Welding -- 5.9 Electromagnetic Welding -- 5.9.1 Equipment -- 5.9.2 Process -- 5.9.3 Joint Design -- 5.10 Radio Frequency (RF) Welding -- 5.10.1 Equipment -- 5.10.2 Process -- 5.11 Laser Welding -- 5.11.1 Equipment -- 5.11.2 Process -- 5.11.3 Noncontact Welding -- 5.11.4 Transmission Welding -- 5.11.5 Intermediate Film & -- ClearWeld™ Welding -- 5.11.6 Polymers -- 5.11.7 Applications -- 5.12 Conclusion -- 6 Press Fitting -- 6.1 Introduction -- 6.2 Definitions and Notations -- 6.3 Geometric Definitions -- 6.4 Safety Factors -- 6.5 Creep -- 6.6 Loads -- 6.7 Press Fit Theory -- 6.8 Design Algorithm -- 6.9 Case History: Plastic Shaft and Plastic Hub -- 6.9.1 Shaft and Hub Made of Different Polymers -- 6.9.2 Safety Factor Selection -- 6.9.3 Material Properties -- 6.9.4 Shaft Material Properties at 23°C -- 6.9.4.1 Shaft Material Properties at 93°C -- 6.9.4.2 Creep Curves at 23°C -- 6.9.4.3 Creep at 93°C -- 6.9.4.4 Pulley at 23°C -- 6.9.4.5 Pulley at 93°C -- 6.9.4.6 Creep, Pulley at 23°C -- 6.9.4.7 Creep, Pulley at 93°C -- 6.10 Solutions: Plastic Shaft, Plastic Hub -- 6.10.1 Case A -- 6.10.2 Case B -- 6.10.3 Case C -- 6.10.4 Case D. 6.11 Case History: Metal Ball Bearing and Plastic Hub -- 6.11.1 Fusible Core Injection Molding -- 6.11.2 Upper Intake Manifold Background -- 6.11.3 Design Algorithm -- 6.11.4 Material Properties -- 6.11.4.1 CAMPUS -- 6.11.5 Solution -- 6.11.5.1 Necessary IF at Ambient Temperature -- 6.11.5.2 IF Available at 118°C -- 6.11.5.3 IF Verification at -40°C -- 6.11.5.4 Verification of Stress Level at -40°C, Time = 0 -- 6.11.5.5 Stress Level at -40°C, Time = 5,000 h -- 6.11.5.6 Stress Level at 23°C, Time = 5,000 h -- 6.11.5.7 Stress Level at 118°C, Time = 5,000 h -- 6.12 Successful Press Fits -- 6.13 Conclusion -- 7 Living Hinges -- 7.1 Introduction -- 7.2 Classic Design for PP and PE -- 7.3 Common Living Hinge Design -- 7.4 Basic Design for Engineering Plastics -- 7.5 Living Hinge Design Analysis -- 7.5.1 Elastic Strain Due to Bending -- 7.5.1.1 Assumptions -- 7.5.1.2 Geometric Conditions -- 7.5.1.3 Strain Due to Bending -- 7.5.1.4 Stress Due to Bending -- 7.5.1.5 Closing Angle of the Hinge -- 7.5.1.6 Bending Radius of the Hinge -- 7.5.2 Plastic Strain Due to Pure Bending -- 7.5.2.1 Assumptions -- 7.5.2.2 Strain Due to Bending -- 7.5.3 Plastic Strain Due to a Mixture of Bending and Tension -- 7.5.3.1 Tension Strain -- 7.5.3.2 Bending Strain -- 7.5.3.3 Neutral Axis Position -- 7.5.3.4 Hinge Length -- 7.5.3.5 Elastic Portion of the Hinge Thickness -- 7.6 Computer Flow Chart -- 7.6.1 Computer Notations -- 7.7 Computer Flow Chart Equations -- 7.8 Example: Case History -- 7.8.1 World-Class Connector -- 7.8.1.1 Calculations for the "Right Way" Assembly -- 7.8.1.2 Calculations for the "Wrong Way" Assembly -- 7.8.2 Comparison Material -- 7.8.2.1 "Right Way" Assembly -- 7.8.2.2 "Wrong Way" Assembly -- 7.8.3 Ignition Cable Bracket -- 7.8.3.1 Initial Design -- 7.8.3.2 Improved Design -- 7.9 Processing Errors for Living Hinges -- 7.10 Coined Hinges. 7.11 Oil-Can Designs -- 7.12 Conclusion -- 7.13 Exercise -- 8 Snap Fitting -- 8.1 Introduction -- 8.2 Material Considerations -- 8.3 Design Considerations -- 8.3.1 Safety Factors -- 8.4 Snap Fit Theory -- 8.4.1 Notations -- 8.4.2 Geometric Conditions -- 8.4.3 Stress/Strain Curve and Formulae -- 8.4.4 Instantaneous Moment of Inertia -- 8.4.5 Angle of Deflection -- 8.4.6 Integral Solution -- 8.4.7 Equation of Deflection -- 8.4.8 Integral Solution -- 8.4.9 Maximum Deflection -- 8.4.10 Self-Locking Angle -- 8.5 Case History: One-Way Continuous Beam with Rectangular Cross Section -- 8.5.1 Geometrical Model -- 8.6 Annular Snap Fits -- 8.6.1 Case History: Annular Snap Fit, Rigid Beam with Soft Mating Part -- 8.6.2 Notations -- 8.6.3 Geometric Definitions -- 8.6.4 Material Selections and Properties -- 8.6.5 Basic Formulas -- 8.6.6 Angle of Assembly -- 8.6.7 Case History: Digital Wristwatch -- 8.7 Torsional Snap Fits -- 8.7.1 Notations -- 8.7.2 Basic Formulae -- 8.7.3 Material Properties -- 8.7.4 Solution -- 8.8 Case History: Injection Blow Molded Bottle Assembly -- 8.9 Tooling -- 8.10 Case History: Snap Fits That Kill -- 8.11 Assembly Procedures -- 8.12 Issues with Snap Fitting -- 8.13 Serviceability -- 8.14 Exercise -- 8.14.1 Solution -- 8.15 Conclusions -- 9 Bonding -- 9.1 Failure Theories -- 9.2 Surface Energy -- 9.3 Surface Treatment -- 9.4 Types of Adhesives -- 9.5 Advantages and Limitations of Adhesives -- 9.6 Stress Cracking in Bonded Joints of Adhesives -- 9.7 Joint Design -- 9.8 Conclusion -- 10 In-Mold Assembly -- 10.1 Overmolding -- 10.2 In-Mold Assembly -- 10.3 Joint Design -- 10.4 Tool Design -- 10.5 Case Histories: Automotive IMA -- 10.6 Conclusion -- 11 Fasteners -- 11.1 Thread Forming -- 11.2 Case History: Automotive Undercarriage Splash Shield -- 11.3 Thread Cutting -- 11.4 Case History: Thermal Management Module -- 11.5 Conclusion. Appendix A: Enforced Displacement. |
| Record Nr. | UNINA-9911007111703321 |
Tres Paul A
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| Munich : , : Hanser, , 2021 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Designing plastic parts for assembly / / Paul A. Tres
| Designing plastic parts for assembly / / Paul A. Tres |
| Autore | Tres Paul A. |
| Edizione | [Eighth edition updated.] |
| Pubbl/distr/stampa | Munich : , : Hanser Publishers |
| Descrizione fisica | 1 online resource : Illustrations |
| Disciplina | 668.4 |
| Soggetto topico |
Plastics - Molding
Machine parts Engineering design |
| ISBN |
9781523112913
1523112913 9781569906699 1569906696 9781569906682 1569906688 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- Contents -- Foreword to the Eighth Edition -- Preface to the Eighth Edition -- Foreword to the First Edition -- Preface to the First Edition -- Acknowledgments -- 1 Understanding Plastic Materials -- 1.1 Basic Resins -- 1.1.1 Thermoplastics -- 1.1.2 Thermosets -- 1.2 Basic Structures -- 1.2.1 Crystalline -- 1.2.2 Amorphous -- 1.2.3 Liquid Crystal Polymer (LCP) -- 1.2.4 New Polymer Technologies -- 1.2.4.1 Inherently Conductive Polymers (ICP) -- 1.2.4.2 Electro-Optic Polymers (EOP) -- 1.2.4.3 Biopolymers -- 1.3 Homopolymer vs. Copolymer -- 1.4 Reinforcements -- 1.5 Fillers -- 1.5.1 Glass Spheres -- 1.5.1.1 Microsphere Properties -- 1.5.1.2 Compounding -- 1.5.1.3 Injection Molding -- 1.5.1.4 Mechanical Properties in Injection-Molded Thermoplastic Applications -- 1.6 Additives -- 1.7 Physical Properties -- 1.7.1 Density and Specific Gravity -- 1.7.2 Elasticity -- 1.7.2.1 Case History: Elasticity and Denier -- 1.7.3 Plasticity -- 1.7.4 Ductility -- 1.7.5 Toughness -- 1.7.6 Brittleness -- 1.7.7 Notch Sensitivity -- 1.7.8 Isotropy -- 1.7.9 Anisotropy -- 1.7.10 Water Absorption -- 1.7.11 Mold Shrinkage -- 1.8 Mechanical Properties -- 1.8.1 Normal Stress -- 1.8.2 Normal Strain -- 1.8.3 Stress-Strain Curve -- 1.9 Creep -- 1.9.1 Introduction -- 1.9.2 Creep Experiments -- 1.9.3 Creep Curves -- 1.9.4 Stress-Relaxation -- 1.10 Impact Properties -- 1.11 Thermal Properties -- 1.11.1 Melting Point -- 1.11.2 Glass Transition Temperature -- 1.11.3 Heat Deflection Temperature -- 1.11.4 Coefficient of Thermal Expansion -- 1.11.5 Thermal Conductivity -- 1.11.6 Thermal Influence on Mechanical Properties -- 1.11.7 Case History: Planetary Gear Life Durability -- 2 Understanding Safety Factors -- 2.1 What Is a Safety Factor -- 2.2 Using the Safety Factors -- 2.2.1 Design Safety Factors -- 2.2.1.1 Design Static Safety Factor -- 2.2.1.2 Design Dynamic Safety Factor.
2.2.1.3 Design Time-Related Safety Factor -- 2.2.2 Material Properties Safety Factor -- 2.2.3 Processing Safety Factors -- 2.2.4 Operating Condition Safety Factor -- 3 Strength of Material for Plastics -- 3.1 Tensile Strength -- 3.1.1 Proportional Limit -- 3.1.2 Elastic Stress Limit -- 3.1.3 Yield Stress -- 3.1.4 Ultimate Stress -- 3.2 Compressive Stress -- 3.3 Shear Stress -- 3.4 Torsion Stress -- 3.5 Elongations -- 3.5.1 Tensile Strain -- 3.5.2 Compressive Strain -- 3.5.3 Shear Strain -- 3.6 True Stress and Strain vs. Engineering Stress and Strain -- 3.7 Poisson's Ratio -- 3.8 Modulus of Elasticity -- 3.8.1 Young's Modulus -- 3.8.2 Tangent Modulus -- 3.8.3 Secant Modulus -- 3.8.4 Creep (Apparent) Modulus -- 3.8.5 Shear Modulus -- 3.8.6 Flexural Modulus -- 3.8.7 The Use of Various Moduli -- 3.9 Stress Relations -- 3.9.1 Introduction -- 3.9.2 Experiment -- 3.9.3 Equivalent Stress -- 3.9.4 Maximum Normal Stress -- 3.9.5 Maximum Normal Strain -- 3.9.6 Maximum Shear Stress -- 3.9.7 Maximum Deformation Energy -- 3.10 ABCs of Plastic Part Design -- 3.10.1 Constant Wall -- 3.10.2 Fillets -- 3.10.3 Boss Design -- 3.10.4 Rib Design -- 3.10.5 Case History: Ribs -- 3.11 Conclusions -- 4 Nonlinear Considerations -- 4.1 Material Considerations -- 4.1.1 Linear Material -- 4.1.2 Nonlinear Materials -- 4.2 Geometry -- 4.2.1 Linear Geometry -- 4.2.2 Nonlinear Geometry -- 4.3 Finite Element Analysis (FEA) -- 4.3.1 FEA Method Application -- 4.3.2 Using FEA Method -- 4.3.3 Most Common FEA Codes -- 4.4 Conclusions -- 5 Welding Techniques for Plastics -- 5.1 Ultrasonic Welding -- 5.1.1 Ultrasonic Equipment -- 5.1.2 Horn Design -- 5.1.3 Ultrasonic Welding Techniques -- 5.1.4 Control Methods -- 5.1.4.1 Common Issues with Welding -- 5.1.4.2 Joint Design -- 5.1.4.3 Butt Joint Design -- 5.1.4.4 Shear Joint Design -- 5.1.4.5 Torsional Ultrasonic Welding. 5.1.4.6 Case History: Welding Dissimilar Polymers -- 5.2 Ultrasonic (Heat) Staking -- 5.2.1 Standard Stake Design -- 5.2.2 Flush Stake Design -- 5.2.3 Spherical Stake Design -- 5.2.4 Hollow (Boss) Stake Design -- 5.2.5 Knurled Stake Design -- 5.3 Ultrasonic Spot Welding -- 5.4 Ultrasonic Swaging -- 5.5 Ultrasonic Stud Welding -- 5.6 Spin Welding -- 5.6.1 Process -- 5.6.2 Equipment -- 5.6.3 Welding Parameters -- 5.6.4 Joint Design -- 5.7 Hot Plate Welding -- 5.7.1 Process -- 5.7.2 Joint Design -- 5.8 Vibration Welding -- 5.8.1 Process -- 5.8.2 Equipment -- 5.8.3 Joint Design -- 5.8.4 Common Issues with Vibration Welding -- 5.9 Electromagnetic Welding -- 5.9.1 Equipment -- 5.9.2 Process -- 5.9.3 Joint Design -- 5.10 Radio Frequency (RF) Welding -- 5.10.1 Equipment -- 5.10.2 Process -- 5.11 Laser Welding -- 5.11.1 Equipment -- 5.11.2 Process -- 5.11.3 Noncontact Welding -- 5.11.4 Transmission Welding -- 5.11.5 Intermediate Film & -- ClearWeld™ Welding -- 5.11.6 Polymers -- 5.11.7 Applications -- 5.12 Conclusion -- 6 Press Fitting -- 6.1 Introduction -- 6.2 Definitions and Notations -- 6.3 Geometric Definitions -- 6.4 Safety Factors -- 6.5 Creep -- 6.6 Loads -- 6.7 Press Fit Theory -- 6.8 Design Algorithm -- 6.9 Case History: Plastic Shaft and Plastic Hub -- 6.9.1 Shaft and Hub Made of Different Polymers -- 6.9.2 Safety Factor Selection -- 6.9.3 Material Properties -- 6.9.4 Shaft Material Properties at 23°C -- 6.9.4.1 Shaft Material Properties at 93°C -- 6.9.4.2 Creep Curves at 23°C -- 6.9.4.3 Creep at 93°C -- 6.9.4.4 Pulley at 23°C -- 6.9.4.5 Pulley at 93°C -- 6.9.4.6 Creep, Pulley at 23°C -- 6.9.4.7 Creep, Pulley at 93°C -- 6.10 Solutions: Plastic Shaft, Plastic Hub -- 6.10.1 Case A -- 6.10.2 Case B -- 6.10.3 Case C -- 6.10.4 Case D -- 6.11 Case History: Metal Ball Bearing and Plastic Hub -- 6.11.1 Fusible Core Injection Molding. 6.11.2 Upper Intake Manifold Background -- 6.11.3 Design Algorithm -- 6.11.4 Material Properties -- 6.11.4.1 CAMPUS -- 6.11.5 Solution -- 6.11.5.1 Necessary IF at Ambient Temperature -- 6.11.5.2 IF Available at 118°C -- 6.11.5.3 IF Verification at -40°C -- 6.11.5.4 Verification of Stress Level at -40°C, Time = 0 -- 6.11.5.5 Stress Level at -40°C, Time = 5,000 h -- 6.11.5.6 Stress Level at 23°C, Time = 5,000 h -- 6.11.5.7 Stress Level at 118°C, Time = 5,000 h -- 6.12 Successful Press Fits -- 6.13 Conclusion -- 7 Living Hinges -- 7.1 Introduction -- 7.2 Classic Design for PP and PE -- 7.3 Common Living Hinge Design -- 7.4 Basic Design for Engineering Plastics -- 7.5 Living Hinge Design Analysis -- 7.5.1 Elastic Strain Due to Bending -- 7.5.1.1 Assumptions -- 7.5.1.2 Geometric Conditions -- 7.5.1.3 Strain Due to Bending -- 7.5.1.4 Stress Due to Bending -- 7.5.1.5 Closing Angle of the Hinge -- 7.5.1.6 Bending Radius of the Hinge -- 7.5.2 Plastic Strain Due to Pure Bending -- 7.5.2.1 Assumptions -- 7.5.2.2 Strain Due to Bending -- 7.5.3 Plastic Strain Due to a Mixture of Bending and Tension -- 7.5.3.1 Tension Strain -- 7.5.3.2 Bending Strain -- 7.5.3.3 Neutral Axis Position -- 7.5.3.4 Hinge Length -- 7.5.3.5 Elastic Portion of the Hinge Thickness -- 7.6 Computer Flow Chart -- 7.6.1 Computer Notations -- 7.7 Computer Flow Chart Equations -- 7.8 Example: Case History -- 7.8.1 World-Class Connector -- 7.8.1.1 Calculations for the "Right Way" Assembly -- 7.8.1.2 Calculations for the "Wrong Way" Assembly -- 7.8.2 Comparison Material -- 7.8.2.1 "Right Way" Assembly -- 7.8.2.2 "Wrong Way" Assembly -- 7.8.3 Ignition Cable Bracket -- 7.8.3.1 Initial Design -- 7.8.3.2 Improved Design -- 7.9 Processing Errors for Living Hinges -- 7.10 Coined Hinges -- 7.11 Oil-Can Designs -- 7.12 Conclusion -- 7.13 Exercise -- 8 Snap Fitting -- 8.1 Introduction. 8.2 Material Considerations -- 8.3 Design Considerations -- 8.3.1 Safety Factors -- 8.4 Snap Fit Theory -- 8.4.1 Notations -- 8.4.2 Geometric Conditions -- 8.4.3 Stress/Strain Curve and Formulae -- 8.4.4 Instantaneous Moment of Inertia -- 8.4.5 Angle of Deflection -- 8.4.6 Integral Solution -- 8.4.7 Equation of Deflection -- 8.4.8 Integral Solution -- 8.4.9 Maximum Deflection -- 8.4.10 Self-Locking Angle -- 8.5 Case History: One-Way Continuous Beam with Rectangular Cross Section -- 8.5.1 Geometrical Model -- 8.6 Annular Snap Fits -- 8.6.1 Case History: Annular Snap Fit, Rigid Beam with Soft Mating Part -- 8.6.2 Notations -- 8.6.3 Geometric Definitions -- 8.6.4 Material Selections and Properties -- 8.6.5 Basic Formulas -- 8.6.6 Angle of Assembly -- 8.6.7 Case History: Digital Wristwatch -- 8.7 Torsional Snap Fits -- 8.7.1 Notations -- 8.7.2 Basic Formulae -- 8.7.3 Material Properties -- 8.7.4 Solution -- 8.8 Case History: Injection Blow Molded Bottle Assembly -- 8.9 Tooling -- 8.10 Case History: Snap Fits That Kill -- 8.11 Assembly Procedures -- 8.12 Issues with Snap Fitting -- 8.13 Serviceability -- 8.14 Exercise -- 8.14.1 Solution -- 8.15 Conclusions -- 9 Bonding -- 9.1 Failure Theories -- 9.2 Surface Energy -- 9.3 Surface Treatment -- 9.4 Types of Adhesives -- 9.5 Advantages and Limitations of Adhesives -- 9.6 Stress Cracking in Bonded Joints of Adhesives -- 9.7 Joint Design -- 9.8 Conclusion -- 10 In-Mold Assembly -- 10.1 Overmolding -- 10.2 In-Mold Assembly -- 10.3 Joint Design -- 10.4 Tool Design -- 10.5 Case Histories: Automotive IMA -- 10.6 Conclusion -- 11 Fasteners -- 11.1 Thread Forming -- 11.2 Case History: Automotive Undercarriage Splash Shield -- 11.3 Thread Cutting -- 11.4 Conclusion -- Appendix A: Enforced Displacement -- Appendix B: Point Force -- Appendix C: Molding Process Data Record -- Appendix D: Tool Repair &. Inspection Record. |
| Record Nr. | UNINA-9910583073203321 |
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Tres Paul A.
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| Munich : , : Hanser Publishers | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Handbook of molded part shrinkage and warpage / / Jerry M. Fischer
| Handbook of molded part shrinkage and warpage / / Jerry M. Fischer |
| Autore | Fischer Jerry M |
| Edizione | [2nd ed.] |
| Pubbl/distr/stampa | Waltham, Mass., : William Andrew, 2013 |
| Descrizione fisica | 1 online resource (289 p.) |
| Disciplina |
668.4/12
668.412 |
| Collana | PDL handbook series |
| Soggetto topico | Plastics - Molding |
| ISBN |
1-4557-3057-2
1-283-85408-2 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Front Cover; Handbook of Molded Part Shrinkage and Warpage; Copyright; Contents; Preface; Acknowledgments; 1 - Introduction to Injection Molding; 1.1 Introduction to Plastics; 1.2 Interactivity Basics; 1.3 Thermal Principles Governing Injection Molding; References; 2 - Shrinkage and Warpage; 2.1 In-Mold Shrinkage; 2.2 Warpage; 2.3 Postmold Shrinkage; References; 3 - Causes of Molded-Part Variation: Part Design; 3.1 Wall Thickness; 3.2 Ribs; 3.3 Bosses; 3.4 Example of Proper Part Design; 3.5 Other Design Considerations; References; 4 - Causes of Molded-Part Variation: Material
4.1 Amorphous and Semicrystalline Resins4.2 Effects of Fillers, Reinforcements, Pigments, Time, and Stress; 4.3 Shrinkage Predictions: Using PVT Relationships; References; 5 - Causes of Molded-Part Variation: Mold Design; 5.1 Cavity Dimensions and Design Factors; 5.2 Gate Types; 5.3 Gate Location; 5.4 Gate Size; 5.5 Gate Design Systems; 5.6 Runner Design; 5.7 Mold Cooling Design; 5.8 Mold Construction Materials; 5.9 Prototype Molding with Stereolithography or Similar Type Molds; 5.10 Pitfalls to Avoid; References; 6 - Causes of Molded Part Variation: Processing; 6.1 Molding Conditions 6.2 Injection Melt Temperature6.3 Injection Rate and Pressure; 6.4 Holding Pressure and Time; 6.5 Mold Temperature; 6.6 Demolding Temperature; 6.7 Molded-In Stresses; 6.8 Other Molding Processes; References; 7 - Factors Affecting Postmold Shrinkage and Warpage; 7.1 Effects of Temperature on Dimensions; 7.2 Effects of Moisture on Dimensions; 7.3 Creep; References; 8 - Controlling Mold and Postmold Shrinkage and Warpage; 8.1 Finding the Cause; 8.2 Processing Considerations; 8.3 Material Considerations; 8.4 Tooling Considerations; 8.5 Part Geometry; 8.6 Controlling Warpage; References 9 - Computer-Aided Analysis9.1 Capabilities of CAA; 9.2 Limitations of CAA; 9.3 Selecting a CAA Program; 9.4 Customer Requirements; 9.5 Management Tools; 9.6 Filling Analysis; 9.7 Packing and Holding Simulation; 9.8 Shrinkage/Warpage Simulation; 9.9 Cooling Analysis; 9.10 Costs; 9.11 Conclusions; References; 10 - Case Studies; 10.1 Unexpected Housing Shrink; 10.2 Changing Materials Triggers Warpage; 10.3 Creep in a Water Heater Stand; 10.4 Oversize Part Injection-Molding Alkyd Thermoset; 10.5 Inadequate Baby Dish Mold; 10.6 Gas Entrapment in Baby Dish Mold; 10.7 Warpage in a Molded Spool 10.8 Daisy-Wheel Breakage10.9 PVC Part-Flashing Problems; 10.10 Polycarbonate Switch Failure; 10.11 Square Poker-Chip Tray: Inadequate Shot Size; 10.12 Problem Ejecting Square Poker Chips; 10.13 Military Cup Material "Shrinkage"; 10.14 Core-Deflection Problems; 10.15 Elevator Gib Warpage; 10.16 Sucker-Rod Guide Brittleness; 10.17 Bottle-Cap Thread Distortion; 10.18 Plastic Post Creep; 10.19 Excessive Shrinkage of Glass-Filled Nylon; 10.20 Preventing Warpage in Thin Molded Lids; 10.21 A Printed Circuit Board That Did Not Work; 10.22 A Cup with a Handle that Won't Fill 10.23 Leaking Hot Runner Mold |
| Record Nr. | UNINA-9911004748403321 |
|
Fischer Jerry M
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| Waltham, Mass., : William Andrew, 2013 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
