Capillary Forces in Microassembly: Modeling, Simulation, Experiments, and Case Study

✍ Scribed by Professor Pierre Lambert (auth.)

• Publisher: Springer US
• Year: 2007
• Tongue: English
• Leaves: 265
• Series: Microtechnology And Mems
• Edition: 1
• Category: Library

✦ Synopsis

Capillary Forces in Microassembly discusses the use of capillary forces as a gripping principle in microscale assembly. Clearly written and well-organized, this text brings together physical concepts at the microscale with practical applications in micromanipulation. Throughout this work, the reader will find a review of the existing gripping principles, elements to model capillary forces as well as descriptions of the simulation and experimental test bench developed to study the design parameters. Using well-known concepts from surface science (such as surface tension, capillary effects, wettability, and contact angles) as inputs to mechanical models, the amount of effort required to handle micro-components is predicted. These developments are then applied in a case study concerning the pick and place of balls in a watch ball bearing.

Researchers and engineers involved in micromanipulation and precision assembly will find this a highly useful reference for microassembly system design and analysis.

✦ Table of Contents

Front Matter....Pages I-XXII
Front Matter....Pages 2-2
From Conventional Assembly to Microassembly....Pages 3-8
Classification of Forces Acting in the Microworld....Pages 9-12
Handling Principles for Microassembly....Pages 13-33
Conclusions....Pages 35-35
Front Matter....Pages 37-37
Introduction....Pages 39-39
First Set of Parameters....Pages 41-49
State of the Art on the Capillary Force Models at Equilibrium....Pages 51-63
Static Simulation at Constant Volume of Liquid....Pages 65-72
Comparisons Between the Capillary Force Models....Pages 73-81
Example 1: Application to the Modeling of a Microgripper for Watch Bearings....Pages 83-96
Second Set of Parameters....Pages 97-101
Limits of the Static Simulation....Pages 103-110
Approaching Contact Distance, Rupture Criteria, and Volume Repartition After Separation....Pages 111-125
Example 2: Numerical Implementation of the Proposed Models....Pages 127-135
Conclusions of the Theoretical Study of Capillary Forces....Pages 137-138
Front Matter....Pages 140-140
Introduction....Pages 141-142
Test Bed and Characterization....Pages 143-162
Results....Pages 163-187
Example 3: Application to the Watch Bearing....Pages 189-197
Example 4: Application to the Watch Bearing....Pages 199-210
Front Matter....Pages 140-140
Conclusions....Pages 211-218
Front Matter....Pages 220-220
Conclusions and Perspectives....Pages 221-223
Front Matter....Pages 225-225
Modeling Complements....Pages 227-236
Geometry Complements....Pages 237-241
Comparison Between Both Approaches....Pages 243-246
Symbols....Pages 247-249
Back Matter....Pages 251-263

✦ Subjects

Surfaces and Interfaces, Thin Films;Theoretical and Applied Mechanics;Classical Continuum Physics;Engineering Fluid Dynamics;Nanotechnology;Manufacturing, Machines, Tools