Depth-of-cut errors in research on elastic deformation of process system in camshaft high speed grinding

Liu, Tao (author), Zhang, Yikun (author), Zhong, Fei (author), Liu, Jiahao (author)

To address the issues related to the elastic deformation of non-circular profiles during high-speed grinding, this study proposes a novel mathematical model for predicting the deviation between preset and actual grinding depths in multi-pass operations. The model establishes a correlation between the feed displacement of the high-speed grinding wheel frame and the rotational angle of the camshaft’s non-circular contour. A series of experiments were conducted on a dedicated high-speed grinding platform to examine the influence of grinding depth, number of grinding passes, and grinding wheel speed on the elastic deformation and the dynamic stiffness of the grinding system. The results show that the discrepancy between the theoretical and measured displacements remains within 5.56 %, confirming the accuracy and robustness of the proposed model. Increasing the number of grinding passes significantly reduces feed errors induced by the elastic concession of non-circular profile, with the maximum elastic deformation displacement decreasing markedly from 68.9 % to approximately 1 % of the preset depth after five passes. This study pioneers the incorporation of the elastic concession characteristics of non-circular profiles into grinding deformation analysis, providing both a theoretical basis and practical guidance for compensating elastic deformation in camshaft grinding, thereby effectively improving machining accuracy and process stability.

• Language: English
• Keywords: elastic deformations, dynamic stiffness, high-speed grinding, camshaft, grinding force
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2026
• Number of pages: Str. 13-20
• Numbering: Vol. 72, no. 1/2
• PID: 20.500.12556/RUL-181058
• UDC: 539.31:621.922
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2025.1350
• COBISS.SI-ID: 272764931
• Publication date in RUL: 24.03.2026

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.] = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Napake globine reza pri raziskavah elastične deformacije obdelovalnega sistema pri visokohitrostnem brušenju odmičnih gredi

Abstract

Za reševanje problema elastične deformacije, ki jo povzročajo neorožni profili pri visokohitrostnem brušenju odmičnih gredi, ta študija inovativno predlaga matematični model za napoved odmika med prednastavljeno in dejansko globino brušenja pri večprehodnem obdelovalnem procesu. Model vzpostavlja korelacijo med podajalnim pomikom okvirja visokohitrostnega brusilnega kolesa in vrtilnim kotom nekrožnega profila odmične gredi. Eksperimenti, izvedeni na namenski visokohitrostni brusilni platformi, so sistematično raziskali vpliv globine brušenja, števila prehodov in hitrosti brusnega kolesa na elastično deformacijo ter dinamično togost brusilnega sistema. Rezultati kažejo, da odstopanje med teoretičnimi in izmerjenimi pomiki ne presega 5,56 %, kar potrjuje natančnost in zanesljivost predlaganega modela. Povečanje števila prehodov bistveno zmanjša napake podajanja, ki jih povzroča elastično popuščanje nekrožnih profilov, pri čemer se največji pomik elastične deformacije po petih prehodih zmanjša z 68,9 % na približno 1 % prednastavljene globine. Študija vključuje značilnosti elastičnega popuščanja nekrožnih profilov v analizo deformacij pri brušenju ter zagotavlja teoretično osnovo in praktične smernice za kompenzacijo elastične deformacije pri brušenju odmičnih gredi, s čimer učinkovito izboljša natančnost obdelave in stabilnost procesa.

• Keywords: elastične deformacije, dinamična togost, visokohitrostno brušenje, odmična gred, brusna sila