Study of the influence of the cutting temperature on the magnitude of the contact forces in the machining fixtures

International Conference on Applied Sciences 2017

Cioat, V.G.^1 ; Kiss, I.^1 ; Alexa, V.^1 ; Raiu, S.A.^1 ; Racov, M.^2

Politehnica University of Timisoara, Department of Engineering and Management, Revoluiei Street, no. 5, Hunedoara

331128, Romania^1

University of Novi Sad, Faculty of Technical Science, Department of Mechanization and Design Engineering, Revolution Street, Novi Sad, Serbia^2

关键词: Clamping Force;    Contact forces;    Cutting forces;    Cutting process;    Cutting temperature;    Machining fixtures;    Machining Process;    Moments of inertia;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/294/1/012072/pdf
DOI  :  10.1088/1757-899X/294/1/012072

来源: IOP

【 摘 要 】

In the machining process, the workpieces are installed in machining fixtures in order to establish a strictly determined position with the cutting tool or its trajectory. During the cutting process, the weight of the workpiece, the forces and moments of inertia, cutting forces and moments, clamping forces, the heat released during the cutting process determine the contact forces between the locators and the workpiece. The magnitude of these forces is important because too large value can destroy the surface of the workpiece, and a too small value can cause the workpiece to slip on the locators or even the loss of the contact with the workpiece. Both situations must be avoided. The paper presents a study, realized with CAE software, regarding the influence of the cutting temperature on the magnitude of the contact forces in a machining fixture for the milling a rectangular workpiece.