Question 3 In company KCY, location pins for work-holding devices are ground to a diameter of 12.50 mm, with a tolerance of +0.05 mm. If the process is centered at 12.50 mm and the dispersion is 0...
Question 3 In company KCY, location pins for work-holding devices are ground to a diameter of 12.50 mm, with a tolerance of +0.05 mm. If the process is centered at 12.50 mm and the dispersion is 0.02 mm (a) What percentage of the location pins must be scrapped and what percentage can be reworked? (b) How much should the process centre be changed to eliminate the scrap in part (a)? (8 marks) (c) What is the rework percentage after the change in part (b) has been carried out? (8 marks) (9 marks) The Hong Kong Polytec Question 4 ViewSonic
Question 3 In company KCY, location pins for work-holding devices are ground to a diameter of 12.50 mm, with a tolerance of +0.05 mm. If the process is centered at 12.50 mm and the dispersion is 0.02 mm (a) What percentage of the location pins must be scrapped and what percentage can be reworked? (b) How much should the process centre be changed to eliminate the scrap in part (a)? (8 marks) (c) What is the rework percentage after the change in part (b) has been carried out? (8 marks) (9 marks) The Hong Kong Polytec Question 4 ViewSonic