Modification in Fixture by Computer-Aided-Fixture-Design (CAFD) in Manufacturing Process of Steering Nut to Reduce Defects

  Ranjot Singh,  Taljeet Singh,  Parveen Kumar Saini

The study was done on the defects of the steering nut which was rejected due to incorrect setting up of machine tool on special purpose machine and mishandling of component during heat treatment stage. To eliminate the problem, the threading and grooving is done after the heat treatment on CNC. If threading operation is done after the heat treatment process then the clamping of the component should be changed from the previous clamping method which was held through threaded mandrel. The manufacturing processes such as boring, back boring, threading and grooving are done after the heat treatment which resulted in 60% reduction of machining time and modification in manufacturing process and fixture resulted in decrease in defective components from 15.18% to 1.00%.

Keywords- Steering nut, CNC, Boring, Back boring, Grooving, Defects.

Unique Identification Number - IJEDR1503018
Page Number(s) -
Pubished in - Volume 3 | Issue 3 | July 2015
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Ranjot Singh,  Taljeet Singh,  Parveen Kumar Saini,   "Modification in Fixture by Computer-Aided-Fixture-Design (CAFD) in Manufacturing Process of Steering Nut to Reduce Defects", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 3, pp., July 2015, Available at :http://www.ijedr.org/papers/IJEDR1503018.pdf