Optimization of Process Parameters for Cut Quality in CO2 Laser Cutting Using Taguchi Method

Begić-Hajdarević, Đerzija; Pasic, Mugdim; Čekić, Ahmet; Mehmedović, Muhamed

doi:10.2507/27th.daaam.proceedings.024

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…Numerous analytical models for the calculation of cutting temperatures were developed in the past. The experimental analyses of the temperature distribution in the workpieces, tools, and in the contact area between them were performed [12]. Analytical models of the temperature distribution were calculated in two heat emission zones.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Cutting Parameters on Plastic Deformation and Chip Compression during the Turning of C45 Medium Carbon Steel and 62SiMnCr4 Tool Steel

et al. 2022

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The paper deals with the issue of cutting zone and chip compression. The aim was to analyse the microstructure transverse section of the cutting zone on a metallographic cut, due to determined values of chip compression and plastic deformation, which affect the cutting process efficiency. The tested cutting tool material was coated with cemented carbide. The selected workpiece materials were C45 medium carbon steel of ISO grade and 62SiMnCr4 tool steel of ISO (W.Nr. 1.2101) grade. In the experiments, a DMG CTX alpha 500 turning centre was used. The cutting speed and feed were varied, and the depth of the cut was kept constant during the turning. The plastic deformation and chip compression determine the efficiency of the cutting process. The higher compression requires more work to perform the process and, therefore, it requires more energy for doing so. With the increase of the cutting speed, the deformation for C45 steel is decreased. The rapid deformation reduction was observed when the cutting speed was increased from 145 m/min to 180 m/min. Generally, deformation is decreasing with the increase of the feed. Only at a cutting speed of 145 m/min was the deformation elevation observed, when the feed was increased from 0.4 mm to 0.6 mm. During the turning of the 62SiMnCr4 tool steel we observed an error value at a cutting speed of 145 m/min and a feed of 0.4 mm was the middle cutting parameter. However, feed dependence was clear: With an increase of the feed, the plastic deformation was decreasing. This decreasing was more rapid with the increasing of the cutting speed. Besides plastic deformation, there was analysed chip compression as well. With the increasing of the cutting speed, there was a decrease of the chip compression. Due to a lack of information in the area of the chip compression and the plastic deformation in the cutting process, we decided to investigate the cutting zone for the turning of tool steels 62SiMnCr4, which was compared with the reference steel C45. The results could be applied to increase the efficiency of the process and improvement of the surface integrity.

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Section: Introductionmentioning

confidence: 99%

The Influence of Cutting Parameters on Plastic Deformation and Chip Compression during the Turning of C45 Medium Carbon Steel and 62SiMnCr4 Tool Steel

et al. 2022

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“…Today, laser beam cutting is one of the standard methods in industrial manufacturing due to the high flexibility, excellent level of automation and the high quality of laser treated parts. New powerful brilliant laser sources allow very high cutting velocities and process monitoring devices face new challenges due to the process dynamics and the large number of parameters involved during laser material processing [1]. Different approaches in monitoring the quality of laser cuts have been evaluated by various groups [2], [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Polarisation Measurement of the Emitted Thermal Radiation During Laser Material Processing

Humenberger¹,

Liedl²,

Bammer³

et al. 2018

Proceedings of the 29th International DAAAM Symposium 2018

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We present a new approach for quality control in laser material processing. By means of an active optical element (SCPEM -Single Crystal PhotoElastic Modulator) the emitted thermal radiation from the interaction zone of the focused laser radiation with the material surface is to be detected in order to determine a correlation to the process parameters from the polarisation state of the radiation. Due to the dependence of polarised radiation on the emission angle, the inclination of the interaction zone in the observed area can be deduced. For this purpose, an optomechanical setup for measuring two orthogonal polarisation directions of the emitted thermal radiation has been developed and a data acquisition system has been implemented. The amplitudes of two orthogonal polarisation directions could be determined from the signal modulated by the SCPEM during tests on different experimental setups. From the ratio of these polarisation components, emission angles can be derived using the Fresnel equations.

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“…Experimental study on the surface roughness of tungsten alloy in Abrasive water jet cutting and laser cutting is discussed in [11,12]. In [13,14] authors investigated influence of the cutting edge preparation on tool life of cemented carbide inserts when milling.…”

Section: Introductionmentioning

confidence: 99%

Cutting Edge Microgeometry and Preparation Methods

Vopát¹,

Kuruc²,

Šimna³

et al. 2017

DAAAM Proceedings

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The paper deals with the issue of cutting edge preparation and tool treatment before the coating and their influence on the tool life of coated cutting tools. The aim was to examine the influence of cutting edge radius sizes on the tool life of cemented carbide turning inserts. Theoretical analysis was focussed on the issue of cutting edge microgeometry, discussing the classification and importance of cutting edge microgeometry. The most famous and used edge preparation methods are summarized in article along with the results of current research of famous tool companies and institutions. In this article, the tool lives of cemented carbide turning inserts which were prepared by several methods were compared. Cemented carbide turning inserts were deposited by AlCrSiN nanocomposite hard coating. Long-term tool live tests were carried out on DMG CTX alpha 500 turning centre. The tool wear of cemented carbide turning inserts was measured on Dino-Lite digital microscope during the turning. The tool lives of prepared cemented carbide turning inserts with required cutting edge radius and unprepared ones were compared. These results were investigated in the process of machining of austenitic stainless steel material X6CrNiTi18-10 by DIN EN (AISI 321), which shows higher strain hardening tendency.

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Optimization of Process Parameters for Cut Quality in CO2 Laser Cutting Using Taguchi Method

Cited by 3 publications

References 9 publications

The Influence of Cutting Parameters on Plastic Deformation and Chip Compression during the Turning of C45 Medium Carbon Steel and 62SiMnCr4 Tool Steel

The Influence of Cutting Parameters on Plastic Deformation and Chip Compression during the Turning of C45 Medium Carbon Steel and 62SiMnCr4 Tool Steel

Polarisation Measurement of the Emitted Thermal Radiation During Laser Material Processing

Cutting Edge Microgeometry and Preparation Methods

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