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Definition: A machining process is called non-traditional if its material removal mechanism is basically different than those in the traditional processes, i.e. a different form of energy. (other than the excessive forces exercised by a tool, which is in physical contact with the work piece) is applied to remove the excess material
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
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
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.
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
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
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:.
used for traditional manufacturing processes. Extremely hard and brittle materials are difficult to machine by traditional machining processes such as turning, drilling, shaping and milling. Non traditional machining processes, also called advanced manufacturing processes, are employed where traditional machining.
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.
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

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March 2018