Rubber-pad forming processes: technology and applications

This book describes different types of rubber-pad forming processes currently being studied for their experimental and numerical advantages and disadvantages. Rubber forming adopts a rubber pad contained in a rigid box in which one of the tools (die or punch) is replaced by the rubber pad. Up to 60% of all sheet metal parts in aircraft industry such as frames, seat parts, ribs, windows and doors are fabricated using rubber-pad forming processes. Key process parameters such as rubber material, stamping velocity, rubber-pad hardness and thickness and friction conditions are investigated. The potential role of rubber as a flexible punch in metal working processes is to give insight to engineers about different parts that can be produced using this processThe procedure of suitable die design for each process is presented in detailFull defect analysis is undertaken with a thorough report presented to optimize rubber-pad forming processes.

Cover; Rubber-pad forming processes: Technology and applications; Copyright; Contents; List of figures and table; Preface; 1 Introduction to sheet metal forming processes; 1.1 Introduction; 1.2 Sheet metal forming processes; 1.3 Flexible-die forming; 1.4 Bibliography; 2 Principles of rubber-pad forming; 2.1 Introduction; 2.2 Advantages and disadvantages of rubber-pad forming process; 2.3 Guerin process; 2.4 Verson-Wheelon process; 2.5 Marform process; 2.6 Verson hydroform process; 2.7 SAAB rubber-diaphragm process; 2.8 Maslennikov's process; 2.9 Tube bulging; 2.10 Demarest process.

2.11 Bibliography3 Characteristics of elastomer materials; 3.1 Introduction; 3.2 Elastomer types; 3.3 Compounding; 3.4 Typical elastomers used in rubber-pad forming processes; 3.5 Mechanical properties of elastomers -- linear elastic; 3.6 Mechanical properties of elastomers -- non-linear elastic; 3.7 Hyperelastic models and elastomer mechanics; 3.8 Bibliography; 4 Forming of shallow parts using rubber tools; 4.1 Introduction; 4.2 Guerin process; 4.3 Free forming; 4.4 Bending; 4.5 Multi-point forming of sheet metals with rubber cushions; 4.6 Bibliography.

5 Piercing of sheet metals using rubber punch5.…