Tool Path Compensation Strategy For Machining Thin Wall Low Rigidity Component

Muhammad Zaid, Saleh (2012) Tool Path Compensation Strategy For Machining Thin Wall Low Rigidity Component. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The main problem associate with the machining of thin-wall component is the part deflection which resulting a dimensional surface error. The wall will deflect parallelly with the reduction in the thickness of the material during the material removal process. To solve this problem various attemps have been made in finding the most appropriate cutting method for producing the thin walled feature. There are several method or strategy were used such as scheduling feed rate, conservative cutting conditions and multi-pass machining to limit cutting forces. Such an approach reduces surface error but hampers productivity of machining operation significantly. This project presents a methodology for tool path compensation for effectively machining thin walled component by modifying the tool paths. The cutter compensation method is based on the adjustment of cutter path with respect to the magnitude of surface errors obtained from the preliminary machining with ideal cutter path. The effectiveness of the compensation strategy is then evaluated by measuring the component accuracy and the surface roughness. As a result of investigations carried out, show that the deflection that occurs at the workpiece was increase every time a decrease in density of the workpiece. The method has been used successfully to reduce the excess on the surface of 85%.

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