The present paper is an experimental study on the squeeze pin effect on the high pressure die cast aluminium parts, as a way of improvement of material homogenity on various and big wall thickness castings. Squeeze is used in high pressure die casting technology for optimizing homogenity of big wall thicknesses of die cast parts working as structural, mechanical and hydraulic components, made of different aluminium alloys such AlSi alloys. The objective of this research is to highlight the primary and secondary effects of squeezing on the structural homogenity of high pressure die cast aluminium parts, as well as the dependence of the effects on the squeeze pin dimensions and the operating parameters.
Measuring the true position of a cylinder with a Coordinate Measuring Machine became a simple fact for programmer developer, for this they have to choose between different strategies available on the CMM software to improve measurement accuracy. Everything is changing when we try to measure a true position threaded hole, during serial production this position will pass between some changes that will affect the profile of the thread and the beginning of the threaded hole. Although CMM cylinder strategies methods exist they are not efficiently developed for precise measurement of a thread position. This article will analyse the difference between current methods that are available on the market and will compare the results with an experimental new method, this new method is developed from the method available plus other tools available in the CMM software. The importance of this method is to increase thread position measurement precision during all production cycle time.
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