Investigating the significance of parameters affecting the defects in HPDC component using design of experiment method.

Abstract

A sample lead seal is being prepared in a HPDC D250 machine. In which the experiment is being done by collecting the various parameters affecting the causes for a defect in a component, Where the affecting parameters are pouring temperature ranging from (400-450) O C, tool temperature (80-110) O C, pouring time (1.8-4.5) seconds and cooling medium (air and oil). This experiment was conducted at room temperature; the data's have been collected at various trails and being interrupted by statistical analysis software to find the significance of various parameters affecting the defect in the component. Design of experiment (DOE) by Taguchi method is being conducted by generating an orthogonal array. A response for defect is being input into the worksheet and analysis is being carried out. The signal-to-noise ratio graph shows you the various parameters affecting in a each defect such as blowhole, bubble and flash defect .Taguchi method is evident to conclude that major significance is caused by pouring Temperature for blowhole defect, pouring time influences the major bubble defect in a component and the flash defect is being signified by major parameters like tool temperature and cooling medium. Keywords- high pressure die casting, blowhole, bubble and flash.