Mathematics and Time

Calculation of press practice session No. of total employees = 22 No. of assistant supervisors = 4 term used by assistant supervisors for production process = carbon% -10% = 90% Therefore, the total available cranch = 18 + 0. 9*4 = 21. 6 Maximum labour hours/ month = No. of days*labour hrs available/day*total available labour = 20*8*21. 6 = 3456 hrs Actual labour hours used = 1531. 7 hrs Capacity Utilization = Actual labour hours used/ Maximum labour hours available = (1531. 7/3456) * 100 = 44. 32% This figure does not include the clock interpreted by labour to rework on the parts rejected or returned by the customer.Hence, the actual labour utilization would be more than the to a higher place calculated figure. However, we believe that the above condemnation signifies the actual m exhausted by labour in producing or working on in the altogether parts. 2) Profile operation (Fabrication) Break even analysis Let the optimal order size be N boards a) utilise Punch beseec h radical Operating Time = Setup time + Cycle Time*N = 50 + 1*N = 50 + N b) Using CNC router Operating Time = Setup time + Cycle time*N = 150 + 0. 5*N= 150 + 0. 5N We would use the CNC router when its operating time is less than that of the punch press. i. e. 150 + 0. *N ? 50 + N =& angstromgt 0. 5*N ? 100 =& vitamin Agt N ? 200 =&gt N ? 200 boards Thus, for orders above 200 boards, the CNC router should be used as it will take less time and hence, would produce more fall of boards.3) Drilling Operation (Image Tranfer) Break Even Analysis Let the optimal order size be N boards a) Using Manual cut Total Operation Time = Setup time + Run time = 15 + 0. 08* five hundred*N = 15 + 40N b) Using CNC tire Total Operation Time = Setup time + Run time = 240 + 0. 004*500*N = 240 + 2*N We would use the CNC drill when its operating time is less than that of the punch press. . e. 240 + 2*N ? 15 + 40*N =&gt 38*N ? 225 =&gt N ? 5. 92 =&gt N ? 6 boards Therefore, for orders with si ze above 6 boards or more, CNC drill should be used as it will take less bear upon time and hence would increase the capacity. In addition to this we can in any case calculate capacity utilization using the available run time. As shown in Table 1, the bottle neck is the drilling operation. Thus the utmost number of boards that can be produced is limited by the capacity of drilling( which is 6359) comprehensive of CNC as well as manual drilling.