Faculty Publications

Title

Evaluation of the comparative performance of cryogenically treated cutting inserts as a capstone design project

Document Type

Conference

Journal/Book/Conference Title

ASEE Annual Conference and Exposition, Conference Proceedings

Abstract

Cutting inserts are an integral part of machining operations. In the continual search for cost effectiveness in manufacturing we turn our focus to an attempt to reduce tooling cost by improving the life of cutting inserts. There has been continued research conducted to increase cutter tool life with various applications of cutting fluids, speed and feed rates, and the use of coated cutters. One newer approach, cryogenic processing, has been promoted as an effective method of extending the useful life of different cutting tools used in the manufacturing process. This research area provides an excellent opportunity to apply real life research into capstone design projects. The purpose of the project was to investigate the feasibility of the claim in conjunction with the industry partner, providing students an opportunity to do research in a relevant manufacturing topic in an industrial setting. There are different applications of cryogenic processing, but all of them subject a substance to extremely cold temperatures for a certain length of time. The purpose of this freezing process is to refine the molecular structure of the material, creating a stronger, more durable product. The objective with this process is to minimize the amount of retained austenite in the structure, which tends to be brittle and can cause dimensional instability and loss of strength. There are many benefits touted to the cryogenic processing of metals, however, there is not a lot of application data available. Further, many manufacturing facilities have been reluctant to adopt this process without verification of appropriate research being conducted. This paper deals with an experimental evaluation of the comparative performance of cryogenic treatment on TICN coated carbide inserts. Experiments have been conducted machining cast iron parts with non-treated inserts and inserts cryogenically treated by gas-infusion process. A group of non-treated and treated inserts were subjected to same machining conditions. The part selected for the experiment was a gray iron clutch drum machined in a 4-axis lathe with other operating parameters held constant. This work will present the results obtained from experimentation related to significant difference in tool life and predictability of the cutting inserts. © American Society for Engineering Education, 2007.

Original Publication Date

1-1-2007

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