Experimental Investigation on Tool Wear in AISI H13 Die Steel Turning Using RSM and ANN Methods
- PDF / 2,121,198 Bytes
- 15 Pages / 595.276 x 790.866 pts Page_size
- 85 Downloads / 262 Views
RESEARCH ARTICLE–MECHANICAL ENGINEERING
Experimental Investigation on Tool Wear in AISI H13 Die Steel Turning Using RSM and ANN Methods R. Suresh1
· Ajith G. Joshi2 · M. Manjaiah3
Received: 13 March 2020 / Accepted: 15 October 2020 © King Fahd University of Petroleum & Minerals 2020
Abstract An attempt was made in the present work to study the influence of machining parameters on wear of different types of cutting tools during turning of hardened die steel. Multilayer CVD (chemical vapor deposition) coated, uncoated and PVD (physical vapor deposition) coated ceramic inserts were employed. Response surface method and artificial neural network (ANN) models were employed to predict tool wear. The machining parameters considered in the study were feed rate, cutting speed, depth of cut and cutting time. Central composite design (CCD) technique was utilized to plan and carry out the trials in a systematic manner. The ANN and RSM (response surface methodology) models were developed. Models have exhibited higher degree of accuracy (R2 > 98.5% and MSE < 0.2%) ensuring better feasibility for prediction. ANOVA analysis revealed that cutting speed, cutting time, feed rate and depth of cut as individual were statistically significant influencing parameters on tool wear. Scanning electron microscope images have illustrated that multilayer coated cutting tool exhibited principal wear mechanisms such as abrasion, crater wear and edge chip-off. Cutting tools demonstrated adhesive wear at low machining parameters range and abrasive wear at greater machining parameter range. Keywords Hard machining · Cutting tool material · Tool wear · RSM model · ANN model
1 Introduction Hard turning is a promising technique in the recent years for manufacturers to finish high-hardness steel parts with suitable machining parameters. It is employed to perform finishing operation in order to manufacture precise parts possessing hardness greater than 45 HRC. Cubic boron nitride (CBN) and ceramics tools utilized hard machining processes are considered nowadays as potential and lucrative techniques over conventional finishing operations. Generally, conventional finishing operations such as grinding and polishing involve greater cycle time with less flexibility. However, associated issues are low productivity and environ-
B
R. Suresh [email protected]
1
Department of Mechanical and Manufacturing Engineering, M. S. Ramaiah University of Applied Sciences, Bengaluru 560058, India
2
Department of Mechanical Engineering, Canara Engieering College, Bantwal, India
3
Department of Mechanical Engineering, National Institute of Technology, Warangal, India
mental problems. Thus, in the past few years hard machining has been developed as reliable practice in production industries due to its reduced production lead time, relatively less energy consumption and greater productivity. Nevertheless, major concerns of during hard machining are tool wear and surface integrity [1–3]. Several researchers have presented literatures on tool wear, surface inte
Data Loading...
