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Conventional Machining Processes mostly remove material in the form of chips by applying forces on the work material with a wedge shaped cutting tool that is harder than the work material under machining condition. Non-traditional Machining Processes. The major characteristics of conventional machining are:.
Material removal processes are mainly the secondary manufacturing processes. Similarly, Abrasive Jet Machining (AJM), Ultrasonic Machining (USM), Water Jet and Abrasive Water Jet Machining (WJM and AWJM), Electro- discharge Machining (EDM) are some of the Non Traditional Machining (NTM) Processes.
Figure 1: Electrical discharge machine. The traditional machining processes rely on harder tool or abrasive material to remove the softer material whereas non-traditional machining processes such as EDM uses electrical spark or thermal energy to erode unwanted material in order to create desired shape. So, the hardness
Electrical processes – 1) EDM. Electric discharge machining. - desired surface obtained by electric discharges (sparks). - Two electrodes (tool electrode and workpiece electrode). - Dielectric liquid. - High current values initiate sparks. - Spark remove material from both electrodes
Situations where traditional machining processes are unsatisfactory or uneconomical: – Workpiece material is too hard, strong, or tough. – Workpiece is too flexible to resist cutting forces or too difficult to clamp. – Part shape is very complex with internal or external profiles or small holes. – Requirements for surface finish and
Material Removal Processes Once Again Can Be Divided Into Two Groups. 1. Conventional Machining Processes. 2. Non-Traditional Manufacturing Processes or Unconventional Machining processes. Conventional Machining Processes mostly remove material in the form of chips by applying forces on the work material
Vol. 62, July 2003, pp 678-682. Non-conventional Machining Processes as Viable Alternatives for Production With. Specific Reference to Electrical Discharge Machining. H S Payal" and B L Sethi*. "Department of Mechanical & Production Engineering, Beant College of Engineering & Technology, Gurdaspur 143 52 1.
17 Oct 2017 Abrasive Jet Machining, Ultrasonic Machining (USM) and. Waterjet Machining (WJM) are typical examples of single action, mechanical non traditional machining processes. ? The machining medium is solid grains suspended in an abrasive slurry in the former, while a fluid is employed in the. WJM process
Traditional machining is mostly based on removal of materials using tools that are harder than the materials themselves. • New and novel materials because of their greatly improved chemical, mechanical and thermal properties are sometimes impossible to machine using traditional machining processes. • Traditional
Electro Discharge Machining (EDM) is considered to be one of the most successful non conventional machining process, find a wide range of applications for production of complicated shapes, micro holes with high accuracy in various electrically conductive materials and high- strength temperature-resistant alloys. The tool

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March 2018