A study on the appropriate usage of different tool materials

✍ Scribed by M. Rahman; K.H.W. Seah; T.N. Goh; C.H. Lee

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 930 KB
• Volume: 29
• Category: Article
• ISSN: 0924-0136
• DOI: 10.1016/0924-0136(92)90429-v

✦ Synopsis

Coated tungsten carbide inserts are most widely used in the turning operation. However, no proper investigation has been carried out so far to specify their appropriate usage. On the one hand, reported investigations regarding the performance evaluation of various insert materials are very few; on the other hand no comparative performance evaluation has been made in those studies except for the catalogue information supplied by the manufacturers. For a fully automated, unmanned and flexible machining cell to materialize, and also for proper cost evaluation of components to be machined, a thorough evaluation of different types of coated inserts is of utmost importance. Thus an attempt has been made in this study to evaluate the performance of commonly used tungsten carbide inserts coated with titanium nitride (TIN), titanium carbide (TiC) and aluminum oxide (Al20~). The evaluation, based on a 3-level factorial experimental design for the input parameters, has been carried out in this~aper through cutting tests in a CNC lathe under various cutting parameters. Marked differences have been observed in the performance characteristics of the three types of coatings, as reflected in the output parameters, and an attempt has been made to explain these observations.