HARD TURNING OF AISI D2 STEEL IN CNC SETUP: ORIGINAL STUDY
Navriti Gupta
Mechanical Engineering & Delhi Technological University , IN
Dr. R.S Walia
Mechanical Engineering & Delhi Technological University , IN
Dr. A.K Agrawal
Mechanical Engineering & Delhi Technological University , IN
Keywords: Turning, D2, CNC, Surface finish, ATC, Turning centre specifications, Machining parameters, cutting tool , inserts
Abstract
D2 steel is an industrial tool steel. It is widely used in tool and die industry for making cutting tool inserts, bending insert, restriking inserts etc. which can be taken out after their tool life. D2 steel is very tough steel and difficult to machine also. High generations tool bits like Tungsten carbides and Titanium carbides are required to machine them. Heat treatment follows the machining process.Their mach inability is very low. CNC machines are often used to finish them. Often they are machined using programs on UG-NX Uni Graphics(CAM) and DELCAM. And they have to be machined in three steps. Roughing operations, followed by Semi-Finish machining and last step is finish machining. CNC machining centre are versatile in their applications in metal removal processes. Often they are
so modernized that just like many manufacturing operations, metal removal can be automated too. Need for CNC machining arises due to extensive finishing requirements in aerospace, automotive industries. However the CNC or Computer and Numerically controlled machining process usage is not limited to these industries only. Tool and Die industry also is heavily dependent on CNC material removal and machining processes as now replaceable inserts are widely used in this industry
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