Machining Performance of TiCN/Al2O3 Multilayer and B-TiC Nano Multilayer Coated Inserts on Martensitic Stainless Steel i
Martensitic stainless steels (AISI410) are widely used in aerospace industries, turbines, compressor components, shafting, nuclear applications, etc., because of the excellent corrosion resistance and high strength. Machinability and surface roughness are
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ent of Mechanical Engineering, Anna University of Technology Madurai, Madurai, Tamilnadu, India e-mail: [email protected] P. Marimuthu Department of Mechanical Engineering, Syed Ammal Engineering College, Ramanathapuram, Tamilnadu, India e-mail: [email protected] K. Raja Department of Mechanical Engineering, Anna University of Technology Madurai, Ramanathapuram Campus, Ramanathapuram, Tamilnadu, India e-mail: [email protected]
S. Sathiyamoorthy et al. (eds.), Emerging Trends in Science, Engineering and Technology, Lecture Notes in Mechanical Engineering, DOI: 10.1007/978-81-322-1007-8_23, © Springer India 2012
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1 Introduction Modern industry goal is to manufacture high quality products in a short time. CNC machines are capable of achieving high accuracy and very low processing time. Turning is common method for cutting, especially for the finished machined parts [1, 2]. In machining surface quality is one of the most specified customer requirements. surface roughness is one of the main results of process parameters such as tool geometry and cutting conditions (cutting speed, feed rate, depth of cut, etc.) [3]. AISI410, 420, and 440 are all considered as martensitic stainless steel and can be hardened like other alloy steels. AISI410 are widely used in aerospace industries for bearings, water valves, pumps, turbines, compressor components, shafting, surgical tools, plastic moulds nuclear applications, etc., which demand high strength and high resistance to wear and corrosion [4]. Machinability is poor in turning AISI410 because of low thermal conductivity, high ductility, high strength, high fracture toughness, and rate of work hardening [5]. Coated carbides are basically a cemented carbide insert coated with one or more thinly layers of wear resistant materials such as titanium nitride, titanium carbide, and aluminum oxide [6, 7]. It is well known that coating can reduce tool wear and improve the surface roughness [8, 9]. Therefore, most of the carbide tools used in the metal cutting industries is coated while coating brings about an extra cost [10, 11]. Thamizhmani [12] was investigated the AISI410 by PCBN cutting tool. They found that SR value was low at high cutting speed with low feed rate. Gutakorskis [13] was performed turning test on AISI410 by using nono coated cutting tool. Noortin [14] conducted a dry turning test on AISI410 using coated cermets and coated carbide tool. Tamizhmani [15] analyzed surface roughness on AISI410 with CBN cutting tool by turning. Ihsan [16] carried out turning tests on stainless steel to determine the optimum machining parameters. They found a decrease in tool wear and an increase in the surface roughness with decreasing the cutting speed. Cebeli [17] studied the machining characteristics of on stainless steel in turning processes. They found that the SR was increased when the depth of cut and feed rate were increased, while the cutting speed had an inverse influence. Lin [18] performed a research to evaluate the behavior o
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