New Opportunities with Molded Gears
by: R.E. Kleiss, A.L. Kapelevich and N.J. Kleiss Jr., Kleiss Gears, Inc.
Ameri corporation Gear Manufacturers Association
technological PAPER
New Opportunities with Molded Gears
Roderick E. Kleiss, Alexander L. Kapelevich and N. Jack Kleiss Jr., Kleiss Gears, Inc.
[The statements and opinions contained herein argon those of the author and should not be construed as an official follow out or opinion of the American Gear Manufacturers Association.]
Abstract
Molded cogwheel includes plastic and powder metal injection mould paraphernalias as well as powder metal sintered appurtenances. Near-net bad gears may to a fault share some unequalled similarities and opportunities as well. This type of manufacturing offers some particularly intriguing opportunities for the gear designer, and also some challenges not usually encountered with cut gears. The challenges are a good deal related to the mechanical properties of the material. Proper steel, cut and elusiveened correctly, is hard to beat for strength. Ordinary attempts to replace steel gears with the molded potpourri are usually doomed to failure.
On the other hand, molded gears can offer some material properties not accomplishable with cut gears, including unique advantages in weight, noise, modulus, self-lubrication, magnetism, chemical resistance, and most sympathetic low cost. The challenge is to make them survive the demands put upon them. For instance, thermoplastic gears, when placed under continuous high load, will melt. This is a phenomenon not shared with any metal counterpart. The goal must be to make a weaker material appear stronger. The unique tools that are available to the molded gear designer are concentrated in the method of manufacture. When the proper mold is constructed and have with the optimized molding process, a remarkably consistent and uniform gear can be continuously manufactured. The construction of this molded tooling can be almost completely CAD based. Traditional gear cutting...If you want to get a full essay, order it on our website: Ordercustompaper.com
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