Introduction During recent months, production personnel of the Tacky Tachometer

Question

Introduction During recent months, production personnel of the Tacky Tachometer Company (TTC) have been visited several times by a salesman from a local firm which specializes in powder metallurgy. During these calls, the salesman urged TTC's officials to consider adopting powder metallurgy as an alternative method of manufacturing certain of the small, accurate, metal parts required as components of various items in TTC's product line. As a result of these visits, TTC personnel are weighing the advisability of changing to the powder-metallurgy process in the manufacture of expander weights used in their firm's extensive line of tachometers [speed-counters]. At this time, these wrought weights are produced from cylindrical brass blanks which TTC purchases from screw-machine subcontractors who machine them to specifications. The blanks are then milled, drilled, and burred to the final shape and dimensions in the TTC factory Powder Metallurgy Powder metallurgy (PM) is a process which forms metal objects by compressing powdered metal into dies to produce a "briquette" of desired shape and then heating the briquette to obtain a fusing of the powder, which becomes a solid form upon cooling. The appearance of the resulting product is similar to that obtained by the melting and casting of metals. Accuracy obtainable by the powder-metallurgy process is usually comparable to that obtainable by die casting [±0.0003 inch, but with less loss of metal from oxidation and overflow Where greater accuracy or strength is desired, the briquette can be "coined that is, compressed by coining dies operated in powerful embossing-type presses, producing tolerances approaching +0.0002 inch.

Explanation / Answer

Given:

The question is whether PM weights should be brought or not.

No TTC should not switch to PM weights ecause they have to change their entire machinery, only certain alloys can be used, there is a safety hazard, more scrap and more porous materials,etc

The question is whether TTC should make its own weights.Cost associated

Therefore TTC should buy the weights from the supplier.

TTC should work on all 3 shifts as overhead costs will come down and definitely should atleast work for 2 shifts.

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