Investigation of Modified Cutting Insert with Forced Coolant Application in Machining of Alloy 718
2016 (English)In: Procedia CIRP, ISSN 2212-8271, E-ISSN 2212-8271, Vol. 42, 481-486 p.Article in journal (Refereed) PublishedText
Abstract In the last decades machining methods have witnessed an advancement in both cutting tools and coolant/lubrication, sometimes in combination with high pressure jet. The aim of this work is to investigate a modified cutting insert with forced coolant application, FCA, how it influences the tool-chip contact in the secondary shear zone and how it affects the tool wear when turning Alloy 718. During the machining process the main and frequent problems are heat generation and friction in the cutting zone, which has a direct impact on the cutting tool life. High pressure jet cooling have headwayed the cutting technology for the last five decades, showing an improvment of tool life, reduced temperature in the cutting zone and better surface integrity of the workpiece. These developments have practically enhanced the capability and quality in machining of superalloys. This paper is an advancement of the previous work, increasing surface area of the insert, with a additional channel design to improve the coolant reachability in the tool-chip contact area on the rake face. The influence in tool wear has been investigated. Through a set of experiments, a channel design insert with forced coolant application, has shown about 24-33% decrease in tool wear compared to only a textured insert. Hybrid inserts with its cooling and channel features have even widened the operational cutting region with significantly less tool wear.
Place, publisher, year, edition, pages
2016. Vol. 42, 481-486 p.
Turning, Alloy 718, Modified cutting insert, Tool wear, Secondary shear zone, Forced coolant application
Manufacturing, Surface and Joining Technology
Research subject ENGINEERING, Manufacturing and materials engineering; Production Technology
IdentifiersURN: urn:nbn:se:hv:diva-9245DOI: 10.1016/j.procir.2016.02.236ScopusID: 2-s2.0-84966621725OAI: oai:DiVA.org:hv-9245DiVA: diva2:912872
18th CIRP Conference on Electro Physical and Chemical Machining (ISEM XVIII)