Affiliation:
1. Belgorod State Technological University named after V.G. Shukhov
2. BSTU named after V.G. Shukhov
Abstract
The main problem when milling hardened steel is its high hardness and uneven hardening of the workpiece, which exposes the cutting tool to cyclic loads during the cutting process. The ultrahigh temperatures created in the primary and secondary shear zones significantly accelerate various types of wear of hard alloy cutting tools, especially adhesive and diffusion wear. The most common and main cause of tool failure is brittle fracture. This paper presents a study of the influence of geometric parameters of the cutting part of the end mill, wear-resistant coating, chemical composition and grain size of a hard alloy on the degree of various types of wear and destruction during milling of hardened steels. The parameters of the tool were studied, such as the wear-resistant coating, the microstructure of the hard alloy, the angle of inclination of the cutting edge, the front and rear corners of the cutting edge. The grain size and chemical composition of the hard alloy were studied and analyzed using an electron microscope and energy dispersive spectrometry. The thickness of the wear-resistant coating was measured by the ball abrasion method using a coating thickness gauge. After the tests, conclusions were drawn about the influence of the alloy's grain size, chemical composition and the widespread type of wear
Publisher
BSTU named after V.G. Shukhov
Reference20 articles.
1. Kayhan M., Budak E., An experimental investigation of chatter effects on tool life // Journal of Engineering Manufacture. 2009. № 11. Pp. 1455–1463. DOI: 10.1243/09544054JEM1506, Kayhan M., Budak E., An experimental investigation of chatter effects on tool life. Journal of Engineering Manufacture. 2009. № 11. Pp. 1455–1463. DOI: 10.1243/09544054JEM1506
2. Kaye J.E., Yan D.H., Popplewell N., Balakrishnan S. Predicting tool flank wear using spindle speed change // International Journal of Machine Tools and Manufacture. 1995. № 9. Pp. 1309–1320. DOI: 10.5937/fmet1903430N, Kaye J.E., Yan D.H., Popplewell N., Balakrishnan S. Predicting tool flank wear using spindle speed change. International Journal of Machine Tools and Manufacture. 1995. № 9. Pp. 1309–1320. DOI: 10.5937/fmet1903430N
3. Lin T.R., Experimental design and performance analysis of TiN-coated carbide tool in face milling stainless steel // Journal of Materials Processing Technology. 2002. №127. Pp. 1–7. DOI: 10.1016/S0924-0136(02)00026-2, Lin T.R., Experimental design and performance analysis of TiN-coated carbide tool in face milling stainless steel. Journal of Materials Processing Technology. 2002. №127. Pp. 1–7. DOI: 10.1016/S0924-0136(02)00026-2
4. Yamada T., Aoki S., Kitaura Y., Tanaka Y., Hayasaki H. High speed cutting performance of (Al, Ti) N coated carbide end mills for hardened steels // International Journal of Materials Science and Applications. 1997. №5. Pp. 486–489., Yamada T., Aoki S., Kitaura Y., Tanaka Y., Hayasaki H. High speed cutting performance of (Al, Ti) N coated carbide end mills for hardened steels. International Journal of Materials Science and Applications. 1997. №5. Pp. 486–489.
5. Childs T., Maekawa K., Obikawa T., Yamane Y. Metal Machining: Theory and Applications. Arnold Publishers, 2000. 118 p., Childs T., Maekawa K., Obikawa T., Yamane Y. Metal Machining: Theory and Applications. Arnold Publishers, 2000. 118 p.