Using lathe & drilling machines, for 8 hr/day, an operator is cutting down a part to a specific size (see Figure in next Worksheet). Three main elements are needed: (A) Set part into Vice, (B) machining part and (C) Remove part, inspect it & stack it. Requirements: (15 Pts) a. In a mild steel rod of length of 40 mm and diameter of 80 mm is processed to the finished part (as shown in Figure). Two different processes need to run. Estimate the machining time for the 2 processes: 1. Turning Reduce the diameter of the rod, as indicated in the Figure 175 mm & 25 mm), using the turning operation: cutting velocity of 120 m/min and feed of 0.2 mm/rev. 2. Drilli 1. Drill a hole in middle of part, of diameter of 20 mm and depth of 40 mm. 2. Drill a hole in middle of part of diameter of 60 mm & depth of 8 mm, 3. Drill three other holes, on the flange, of diameter of 6 mm and depth of 12 mm, Using an HSS drill of 600 cone angle & assume a surface speed of 20 m/min & a feed of 0.2 mm/rev. (5 Pts) b. If the machine cost is $50/hr, how much will it cost to process 1000 pieces? (20 Pts) c. Include the machining time from Part (a.) & Complete the following Work Sampling Sheet [Fill all blanks in grey), Estimate the Alloances & Calculate the Total standard time for the operation, if the study is acceptable. (20 pts) d. Include the machining time from Part (a.) & Using the MOST form, develop the analysis for this assembly and calculate the Total standard time (Use same% allowances as in Part (e.)] (5 Pts). Compare between the results in (c.) & (d.). Which of the two values of Standard Time would you recommend? Why? (15 Pts) f. If a new hired operator, who has 85% learning rate, takes 5.5 min to complete the first board, how long would it take to reach the standard time recommended from Part (c.)? [Show all your calculations) (10 Pts) g. If the operator is paid $15/hr., how much would be the earning for a stack of 200 parts? under day work plan under standard hour plan (10 Pts) h. if a 50/50 sharing plan is applied above standard performance, 1. Draw both wage payment scheme and unit cost curves below for plans in (g.) & (h.) 2. Derive the optimum plans (g.) or (h.) for different performance levels Using lathe & drilling machines, for 8 hr/day, an operator is cutting down a part to a specific size (see Figure in next Worksheet). Three main elements are needed: (A) Set part into Vice, (B) machining part and (C) Remove part, inspect it & stack it. Requirements: (15 Pts) a. In a mild steel rod of length of 40 mm and diameter of 80 mm is processed to the finished part (as shown in Figure). Two different processes need to run. Estimate the machining time for the 2 processes: 1. Turning Reduce the diameter of the rod, as indicated in the Figure 175 mm & 25 mm), using the turning operation: cutting velocity of 120 m/min and feed of 0.2 mm/rev. 2. Drilli 1. Drill a hole in middle of part, of diameter of 20 mm and depth of 40 mm. 2. Drill a hole in middle of part of diameter of 60 mm & depth of 8 mm, 3. Drill three other holes, on the flange, of diameter of 6 mm and depth of 12 mm, Using an HSS drill of 600 cone angle & assume a surface speed of 20 m/min & a feed of 0.2 mm/rev. (5 Pts) b. If the machine cost is $50/hr, how much will it cost to process 1000 pieces? (20 Pts) c. Include the machining time from Part (a.) & Complete the following Work Sampling Sheet [Fill all blanks in grey), Estimate the Alloances & Calculate the Total standard time for the operation, if the study is acceptable. (20 pts) d. Include the machining time from Part (a.) & Using the MOST form, develop the analysis for this assembly and calculate the Total standard time (Use same% allowances as in Part (e.)] (5 Pts). Compare between the results in (c.) & (d.). Which of the two values of Standard Time would you recommend? Why? (15 Pts) f. If a new hired operator, who has 85% learning rate, takes 5.5 min to complete the first board, how long would it take to reach the standard time recommended from Part (c.)? [Show all your calculations) (10 Pts) g. If the operator is paid $15/hr., how much would be the earning for a stack of 200 parts? under day work plan under standard hour plan (10 Pts) h. if a 50/50 sharing plan is applied above standard performance, 1. Draw both wage payment scheme and unit cost curves below for plans in (g.) & (h.) 2. Derive the optimum plans (g.) or (h.) for different performance levels