book

Microforming Technology

by Zhengyi Jiang, Jingwei Zhao, Haibo Xie

March 2017

Intermediate to advanced

470 pages

14h 6m

English

Academic Press

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Abstract1.1 Microforming Concept1.2 Microforming System1.3 Microforming Methods and ProcessesReferences
Abstract2.1 Categories of Size Effects2.2 Problems Caused by Size Effects2.3 Strategies for Control of Size EffectsReferences

Abstract3.1 Introduction3.2 Scaling in Geometry3.3 Scaling in Dynamics3.4 Scaling in Mechanics3.5 Scaling in Hydrodynamics3.6 Scaling in Heat Transfer3.7 Scaling in Electromagnetic and Electrostatic Forces3.8 Scaling in Electricity
Abstract4.1 Introduction4.2 Couple Stress Theory4.3 Phenomenological Strain Gradient Plasticity Theory4.4 Mechanism-Based Strain Gradient Plasticity Theory4.5 Conventional Theory of Mechanism-Based Strain Gradient PlasticityReferences
Abstract5.1 Introduction5.2 Crystal Plasticity Theory5.3 Simplification of Rate Dependent Crystal Plasticity Theory5.4 Numerical Integration of Rate Dependent Crystal Plasticity Theory5.5 Calculation of Grain Orientation5.6 Crystal Plasticity Finite Element Method in ABAQUSReferences
Abstract6.1 Introduction6.2 Surface Layer Model6.3 Mesoscopic Model6.4 Voronoi ModelReferences
Abstract7.1 Introduction7.2 Simulation Procedure of MCWR7.3 Simulation ResultsReferences
Abstract8.1 Introduction8.2 Simulation Procedure8.3 Simulation ResultsReferences
Abstract9.1 Introduction9.2 Simulation Procedure9.3 Simulation ResultsReferences
Abstract10.1 Introduction10.2 Simulation Procedure10.3 Simulation ResultsReferences
Abstract11.1 Introduction11.2 Simulation Procedure11.3 Simulation ResultsReferences
Abstract12.1 Introduction12.2 Simulation Procedure12.3 Simulation ResultsReferences
Abstract13.1 Introduction13.2 Simulation Procedure13.3 Simulation ResultsReferences
Abstract14.1 Equipment and Tools for Micro Cross Wedge Rolling14.2 Micro Cross Wedge Rolling PracticeReferences
Abstract15.1 Equipment and Tools for Micro Deep Drawing15.2 Micro Flexible Rolling PracticeReferences
Abstract16.1 Equipment and Tools for Micro Ultrathin Strip Rolling16.2 Micro Ultrathin Strip Rolling PracticeReferences
Abstract17.1 Equipment and Tools for Micro Deep Drawing17.2 Micro Deep Drawing PracticeReferences
Abstract18.1 Equipment and Tools for Micro Hydromechanical Deep Drawing18.2 Micro Hydromechanical Deep Drawing PracticeReferences
Abstract19.1 Introduction19.2 Micro Bending Practice19.3 Results AnalysisReferences
Abstract20.1 Introduction20.2 Micro Compression Practice20.3 Results AnalysisReferences

Content preview from Microforming Technology

Chapter 20

Practice of Micro Compression

Abstract

In this chapter, the practice of micro compression of pure copper using the desk-top servo-press machine is introduced. Micro compression tests with assistance of laser heating are conducted to study the influences of temperature in micro compression. Specimens with various grain sizes and different cylindrical diameters are used to investigate the effects of feature size on the material response. Laser heating is found to be an effective method to heat the workpiece so that micro compression process can be performed at elevated temperatures. With grain refinement and thermal activation, it is possible to reduce inhomogeneous flow, leading to improvement in the edge quality of the deformed parts ...