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Bhattacharya, B.
- State of the Art on Ultrasonic Machining of Engineering Ceramics
Abstract Views :194 |
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Authors
Affiliations
1 Production Engg. Dept., Jadavpur University, Kolkata, IN
1 Production Engg. Dept., Jadavpur University, Kolkata, IN
Source
Manufacturing Technology Today, Vol 7, No 7 (2008), Pagination: 3-10Abstract
Ultrasonic machining is a material removal process which does not depend on a conductive workpiece and is preferable for machining workpieces with low ductility and hardness above 40 HRC such as engineering ceramics etc. Material removal mechanism includes impacting, hammering and cavitations. Unlike other non-traditional processes such as laser beam machining, electrical discharge machining, etc., ultrasonic machining does not thermally damage the workpiece and it avoids the significant level of residual stresses which are important for the survival of brittle materials in service. In this paper, the fundamental principles of ultrasonic machining and its combinations with other processes, the material removal mechanisms and the effects of the operating parameters on material removal rate, tool wear rate are reviewed with emphasis on engineering ceramics.- Experimental Investigation for Optimization of CNC-Wire Cut EDM Parameters for Better Surface Finish During Machining of Pral/SIC-MMc
Abstract Views :196 |
PDF Views:0
Authors
A. Manna
1,
B. Bhattacharya
2
Affiliations
1 Mech. Engg. Deptt., Punjab Engineering College, Chandigarh-160012, IN
2 Production Engineering Department, Jadavpur University, Kolkata-700032, IN
1 Mech. Engg. Deptt., Punjab Engineering College, Chandigarh-160012, IN
2 Production Engineering Department, Jadavpur University, Kolkata-700032, IN
Source
Manufacturing Technology Today, Vol 3, No 9 (2004), Pagination: 16-19Abstract
In this investigation, Taguchi method is used to optimize the CNC-Wire cut-EDM parameters for effective machining of Ai-SiC MMC. From experimental results and through analysis of variance (ANOVA) and 'F' test values the significant factors are determined for surface roughness. Mathematical model relating to the machining performance criteria e.g. surface finish is established using Gauss elimination method for effective machining of AI/SiC-MMC. Confirmation test results show that the developed mathematical model is appropriate for effective machining of AI/SiC-MMC and the determined optimal combination of CNC-Wire cut-EDM parameters can also satisfy the real requirement in practice.- Gauss Elimination Method Based Mathematical Model for Gap Current in CNC-WEDM for Effective Machining of AlSiC MMC
Abstract Views :196 |
PDF Views:0
Authors
A. Manna
1,
B. Bhattacharya
2
Affiliations
1 Mech. Engg. Department, Punjab Engineering Coilege, Chandigarh -160012, IN
2 Production Engineering Department, Jadavpur University, Koikata-700032, IN
1 Mech. Engg. Department, Punjab Engineering Coilege, Chandigarh -160012, IN
2 Production Engineering Department, Jadavpur University, Koikata-700032, IN