An Investigation on High-Resolution Temperature Measurement in Precision Fly-Cutting.

Daniel Gräbner,Tjarden Zielinski,Oltmann Riemer,Andrey Vovk,Bernhard Karpuschewski,Walter Lang

doi:10.3390/s21041530

Abstract

The loads acting on a workpiece during machining processes determine the modification of the surface of the final workpiece and, thus, its functional properties. In this work, a method that uses thermocouples to measure the temperature in precision fly-cutting machining with high spatial and temporal resolution is presented. Experiments were conducted for various materials and machining parameters. We compare experimental measurement data with results from modern and advanced machining process simulation and find a good match between experimental and simulation results. Therefore, the simulation is validated by experimental data and can be used to calculate realistic internal loads of machining processes.

Highlights

IntroductionHigh-precision milling and cutting have been long established in industrial production, and a lot of research has been conducted on these processes as well
Temperature measurement was affected by high noise levels from the machining
Temperature measurement was affected by high noise levels from the machining enLow-frequency noise is still visible

Summary

Introduction

High-precision milling and cutting have been long established in industrial production, and a lot of research has been conducted on these processes as well. The quality of machined parts has been improved over a long period of time regarding quantities such as dimensional accuracy or surface roughness. The exact impact of machining processes on the surface properties of the machined parts is often uncertain before machining and subsequently adjusting the process parameters. The state of the surface and subsurface layer after machining is referred to as surface integrity [1]. It is of great interest to understand and describe material modification mechanisms due to machining in order to be able to predict surface properties beforehand. To understand the material modification, the local process load on the machined part has to be determined.

Methods

Results

Discussion

Conclusion