Sketch the operation of a pull system

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Reference no: EM131491637

Quality Parts Company supplies gizmos for a computer manufacturer located at few miles away. The company produces two different models of gizmos in production runs ranging from 100 to 300 units. The production flow of models X and Y is shown in Exhibit 13.15. Model Z requires milling as its first step but otherwise follows the same flow pattern as X and Y. Skids can hold up to 20 gizmos at a time. Approximate times per unit by operation number and equipment setup times are shown in Exhibit 13.16.

Demand for gizmos from the computer company ranges between 125 and 175 per month, equally divided among X, Y, and Z. Subassembly builds up inventory early in the month to make certain that a buffer stock is always available. Raw materials and purchased parts for subassemblies each constitute 40 percent of the minute, twins cost of a gizmo. Both categories of parts are multiple - sourced from about 80 vendors and are delivered at random times. (Gizmos have 40 different part numbers.)

Setup rates are about 10 percent at each operation, inventory nuns twice yearly, employees are paid on a day rate, employee turnover is 25 percent per year and net profit from operations is steady at 5 percent per year. Maintenance is performed as needed. The manager of Quality Pans Company has been contemplating installing an automated ordering system to help control of work in from of a workstation motivates be worker to produce at top speed.) She is also planning to add three inspectors to clean up the quality problem. Further, she is thinking about setting up a rework line to speed repairs. Although she is pleased with the high utilization of most of her equipment and labor, she is concerned about the idle time of the milling machine. Finally, she has asked the industrial engineering department to look into high-rise shelving to store pans coming off machine 4.

QUESTIONS

1. Which of the changes being considered by the manager of Quality Parts Company are counter to the lean philosophy?

2. Make recommendations for lean improvements in such areas as scheduling, layout, kanban, task grouping, and invent, Use quantitative data as much as possible state necessary norms, assumptions,

3. Sketch the operation of a pull system for running Quality Parts Company's current system.

4. Outline a plan for introducing lean at Quality Parts Company.


Attachment:- Exhibit.pdf

Reference no: EM131491637

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