Hot Air Abrasive Jet Machining for PMMA. Modern machining method for Polymethyl Methacrylate

      Аннотация: Hot Air Abrasive Jet Machining(HAJM) is becoming one of the most prominent machining techniques for Polymethyl Methacrylate (PMMA) and other brittle materials. In this attempt has been made to combine abrasive and hot air to form an abrasive hot air jet. Abrasive hot air jet machining can be connected to different tasks, for example, boring, surface scratching, scoring and small scale completing on the glass and its composites. The impact of air temperature on the material expulsion rate connected to the procedure of glass carving and scoring is talked about in this article. The unpleasantness of the machined surface is additionally investigated. It is discovered that the material removal rate (MRR) increments as the temperature of transporter media (air) is expanded. In the present work to be attempt to investigate machining characteristics of PMMA material on hot air abrasive jet machining. In hot air abrasive jet machining(HAJM) abrasive particles stay on abrasive particle stay molten by compacted air in a closed chamber and are intensive over the objective surface over a nozzle the stream of particles coming out of the nozzle through very high velocity’s (175-300m/s) impacts.

Ключевые слова: Hot Air Abrasives Jet Machining-HAJM, PMMA, Taguchi analysis, MCDM- TOPSIS method