Modeling of the cutting forces in end milling of a metallic multilayer material

Župerl, Uroš (author), Kovačič, Miha (author)

Multilayer metal materials are increasingly used by tool shops in the production of transfer tools for sheet-metal forming. In research, it is found that during the machining of these advanced materials, damage to the cutting edge often occurs due to jumps in the cutting forces. The size of the cutting forces when milling a multi-directionally layered metal material is influenced by both the direction of depositing the individual layer and the geometry of the cutting tool. The main goal of the research was to create a mechanistic model of cutting forces for the end-milling of unidirectional and multidirectional 20MnCr5/316L four-layered metal material. The results of the model were compared with experimental data, where a good agreement was found when milling unidirectional layered material and a slightly worse agreement when milling multidirectional material. The maximum observed deviation of the predicted cutting forces is 14.6 % for all the comparative tests.

• Language: English
• Keywords: end-milling, metallic multilayer material, cutting forces, mechanistic model
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: Str. 443-449
• Numbering: Let. 58, št. 4
• PID: 20.500.12556/RUL-168177
• UDC: 621.937:66.011
• ISSN on article: 1580-2949
• DOI: 10.17222/mit.2023.847
• COBISS.SI-ID: 205518339
• Publication date in RUL: 01.04.2025

Record is a part of a journal

• Title: Materiali in tehnologije
• Shortened title: Mater. tehnol.
• Publisher: Inštitut za kovinske materiale in tehnologije
• ISSN: 1580-2949
• COBISS.SI-ID: 106193664

Secondary language

• Language: Slovenian
• Title: Modeliranje rezalnih sil pri čelnem rezkanju kovinskega večplastnega materiala

Abstract

Večslojni kovinski materiali se vse bolj uporabljajo v orodjarnah pri izdelavi transfernih orodij za preoblikovanje pločevine. V raziskavah je bilo ugotovljeno, da pri obdelavi teh naprednih materialov pogosto pride do poškodbe rezalnega roba zaradi skokov rezalnih sil. Na velikost rezalnih sil pri rezkanju večsmerno nanešenih plasti kovinskega materiala vplivata tako smer nanosa posamezne plasti kot tudi geometrija rezalnega orodja. Glavni cilj raziskave je bil izdelati mehanistični model rezalnih sil za čelno rezkanje enosmernega in večsmernega štirislojnega kovinskega materiala 20MnCr5/316L. Rezultate modela smo primerjali z eksperimentalnimi podatki, kjer je bilo ugotovljeno dobro ujemanje pri rezkanju enosmernega plastnega materiala in nekoliko slabše ujemanje pri rezkanju večsmernega materiala. Največje opaženo odstopanje napovedanih rezalnih sil je bilo 14,6 % za vse izvedene primerjalne preizkuse.

• Keywords: oblikovno frezanje, kovinski večplastni materiali, rezalne sile, mehanističen model