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Publication Date: September 27, 1988
The management of a small manufacturer of circuit boards faces a number of production and operations management problems. The first day on this case is used to analyze the production capacity of various stages in the process and to examine bottlenecks and key production flow decisions. The emphasis is on physical flows. The second day the emphasis is on information flows. We look in detail at the problems faced by the company, discuss the tools and techniques of process analysis that can be used to determine the relative importance of those problems, identify solutions, and discuss implementation issues.
Product #: 689030-PDF-ENGCase analysis, Donner Co. Case study solution, Donner Co. Xls file, Donner Co. Excel file, Subjects Covered Capacity analysis Performance measurement Process analysis by Roy D. Shapiro Source: HBS Premier Case Collection 14 pages. Case analysis, Donner Co. Case study solution, Donner Co. Xls file, Donner Co. Excel file, Subjects Covered Capacity analysis Performance measurement Process analysis by Roy D. Shapiro Source: HBS Premier Case Collection 14 pages. View Hanumant Gorade’s profile on LinkedIn, the world's largest professional community. Herr Helmut Donner Trophy - Best of Debut. Case study presentationon Kanad QC “Herr Helmut Donner.
Pages: 14
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Donner Company Case Study Analysis
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Donner Company Case Study Pdfs Free
Topics:Drill, Drilling, Numerical controlPages: 3 (897 words)Published: November 16, 2013
1. The process flow diagram of the production system at Donner. Preparation Stage
Imagine Transfer
Fabrication
2. What size orders would you schedule on the CNC drill? On the CNC router? Time taken to process the orders depends on the selected drilling method either a) Manual drilling or CNC OR b) Using CNC Drill
Assumption 1: Manual Drilling is not done on all the available Manual Drill Presses in parallel. Calculating time taken for Manual drilling and CNC Drilling: = Setup Time + Run Time (Per Hole) * No. of Holes drilled on each circuit board * No. of boards Time taken for Manual drilling =15 + 0.08*500*xwhere x= number of circuit boards Time taken for CNC drilling = 240 + 0.004*500*x where x= number of circuit boards To figure out whether CNC drill to be used,
15 + 0.08*500*x ≥ 240 + 0.004*500*x
Hence x ≥ 5.92. This indicates that whenever 6 or more boards are needed to be drilled, manual drilling will take more time than CNC Drilling Assumption 2: Manual Drilling is done on all the available Manual Drill Presses in parallel. Total no. of available manual drill presses = 7 (1 Panel per Manual Drill Press) Total no. of Circuit Boards on Each 12”X18” Panel = 8
Hence total No. of Circuit Boards can be operated in parallel = 7*8=56 Circuit Boards Time taken for Manual drilling on 1 Drill Press = Time taken for Manual drilling on All Drill Press = 15 + 0.08*500*8 =335 min. Time taken for CNC drilling for 56 Circuit Boards = 240 + 0.004*500*56=352 min 335 Mins < 352 Mins, so let’s try adding one more Unit of Board and calculate time taken Time for Manual drilling = Existing time for 56 Boards + Time taken for 1 new Board
= 335 + 0.08*500*1= 375 min for 57 Boards
Time taken with CNC drilling for 57 Circuit Boards = 240+ 57*500*0.004=354 min. Hence when total no. of Boards exceeds 56, the time taken for manual drilling is more than that of CNC Drilling. Therefore, up to an order size of 56 circuit boards, manual drilling..
Imagine Transfer
Fabrication
2. What size orders would you schedule on the CNC drill? On the CNC router? Time taken to process the orders depends on the selected drilling method either a) Manual drilling or CNC OR b) Using CNC Drill
Assumption 1: Manual Drilling is not done on all the available Manual Drill Presses in parallel. Calculating time taken for Manual drilling and CNC Drilling: = Setup Time + Run Time (Per Hole) * No. of Holes drilled on each circuit board * No. of boards Time taken for Manual drilling =15 + 0.08*500*xwhere x= number of circuit boards Time taken for CNC drilling = 240 + 0.004*500*x where x= number of circuit boards To figure out whether CNC drill to be used,
15 + 0.08*500*x ≥ 240 + 0.004*500*x
Hence x ≥ 5.92. This indicates that whenever 6 or more boards are needed to be drilled, manual drilling will take more time than CNC Drilling Assumption 2: Manual Drilling is done on all the available Manual Drill Presses in parallel. Total no. of available manual drill presses = 7 (1 Panel per Manual Drill Press) Total no. of Circuit Boards on Each 12”X18” Panel = 8
Hence total No. of Circuit Boards can be operated in parallel = 7*8=56 Circuit Boards Time taken for Manual drilling on 1 Drill Press = Time taken for Manual drilling on All Drill Press = 15 + 0.08*500*8 =335 min. Time taken for CNC drilling for 56 Circuit Boards = 240 + 0.004*500*56=352 min 335 Mins < 352 Mins, so let’s try adding one more Unit of Board and calculate time taken Time for Manual drilling = Existing time for 56 Boards + Time taken for 1 new Board
= 335 + 0.08*500*1= 375 min for 57 Boards
Time taken with CNC drilling for 57 Circuit Boards = 240+ 57*500*0.004=354 min. Hence when total no. of Boards exceeds 56, the time taken for manual drilling is more than that of CNC Drilling. Therefore, up to an order size of 56 circuit boards, manual drilling..