Research on machining characteristic of double-layer elastomer in pneumatic wheel method

• Published in: International journal of advanced manufacturing technology Vol. 92; no. 1-4; pp. 1329 - 1338
• Main Authors: Zeng, Xi, Li, Jue-hui, Ji, Shi-ming, Ye, Pan, Hang, Wei, Chen, Guo-da
• Format: Journal Article
• Language: English
• Published: London Springer London 01.09.2017; Springer Nature B.V
• Subjects: Abrasive wheels; Abrasives; CAD; CAE) and Design; Computer aided design; Computer simulation; Computer-Aided Engineering (CAD; Consolidation; Elastic deformation; Elastomers; Empirical analysis; Engineering; Finishing; Free form; Hardening; Industrial and Production Engineering; Laser beam hardening; Machine tools; Machining; Mechanical Engineering; Media Management; Modulus of elasticity; Molds; Original Article; Rubber layers; Softness; Stress concentration; Stress distribution; Thickness; Double-layer elastic mechanics; Mold’s free-form surface with high hardness; Pneumatic wheel; Softness consolidation abrasives
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-017-0226-0

For improvement of finishing effect to the laser hardening mold’s free-form surface with high hardness, double-layer elastic mechanics theory of pneumatic wheel based with softness consolidation abrasives (SCA) is analyzed. Under the annular stress around, ratio coefficient m of modulus of elasticity of abrasive layer to modulus of rubber layer and ratio coefficient n of thickness of abrasive layer to radius of stress have been bought in for establishing machining force model and deformation formula of double-layer elastic wheel. After that, a double-layer elastic model of the wheel has been established by ANSYS and the machining process has been simulated. Stress distribution and deformation rule are given by simulation. In the experiments, we use fiber to reinforce inner rubber layer and take binder to hold on abrasive particles. Microscopic analysis demonstrates that pneumatic wheel accords with the situation of double-layer elastic mechanic theory. Moreover, machining platform is established and empirical results show that pneumatic wheel can finish laser hardening mold’s free-form surface efficiently. And conclusion shows pneumatic wheel with lower factor n can help to decrease R a when it faces with concave surface and pneumatic wheel with higher factor n can improve machining efficiency to convex surface.