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WHY INVESTMENT CASTING? Sometimes it's Simple Problem Solving Using Investment Casting Flexibility


Why use investment casting to man-


ufacture a specific component? There are as many reasons for using as there are parts manufactured by the process. Sometimes it's obvious. Just one


look begs the question, "how did they do that?" The component is extraordinary for its complexity, or critical dimensions, or internal passages, or thin walls, or size, or weight restrictions, or a combination of these. These are the "poster children" of the industry... the ones with the "wow factor."


Then there are those often over-


looked applications that prove the old adage, "there's more to them than meet's the eye." At first glance, they may ap- pear simple or conventional yet, they are


remarkable for the problem solving they have achieved for the customer. These investment casting are often conversions from other processes; without excep- tion, they represent problems solved, weight reduced, assembly eliminated, time shaved, or money saved. They are a dependable mainstay of growing invest- ment casting operations. Most investment casters do their fair


share of "wow-factor" as well as conven- tional castings. Jerry Warnke, an independent rep


with experience with various investment casters and markets, indicated one of the biggest challenges is to establish a rela- tionship with design engineers early in the cycle to convince them to design the


INVESTMENT CASTING EXPERTS


“Casting the Difficult with Precision”


Capabilities: Investment castings up to 300 lbs Primary Markets Served: • Pumps, Valves, Impellers (Commercial) • Pumps, Valves, Impellers (Severe Service) • Oil and Gas Industry • Mining/Agriculture Industry Alloys poured: Over 250 alloys poured to include steel, stainless steels, cobalt base, nickel base, copper base alloys Certifications: Pressure Equipment Directive 97/23/EC ANNEX 1 Paragraph 4.3 certification ISO 9001-2000 certification


component primarily for the optimum functionality, not how they would have to produce it by either fabricating or ma- chining. "We have often been shown either a


fabrication or machined component and asked if it could be converted into a cast- ing," Warnke said. "Our typical answer is yes, but how about incorporating some of the adjacent attached components into a one-piece casting?" Several examples of conversions are


among the entries in recent Investment Casting Institute casting contests.


Tech Cast Component Replaces 7-piece


Welded Fabrication One case in point is a single-piece in-


vestment casting (below) which replaced a seven-piece fabrication. Produced by Tech Cast, Inc. Myerstown, PA, the K-nut casting is part of the locking mechanism used on large sound stages and platforms. The end product is stronger due to the elimination of all the welds, it is dimen- sionally more consistent, it is more at- tractive, and it has the customer's com- pany logo on it in four places– and all at a lower price.


640 S. Cherry Street Myerstown, PA 17067 Ph 717.866.9009 Fx 717.866.7578


www.techcastinc.com 16


K-nut produced by Tech Cast, Inc. replaces a 7-piece fabrication.


January 2011


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