Comparative Fatigue Resistance of Fiber Reinforced Nylon 6 Gears-Reference-Cited by-同舟云学术

Comparative Fatigue Resistance of Fiber Reinforced Nylon 6 Gears

Published:1995-03-01 Issue:1 Volume:117 Page:193-198
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Crippa G.¹,Davoli P.²

Affiliation:

1. Sniatecnopolimeri SpA, Plastics Design Dpt., NYLTECH Italia Ceriano Laghetto, Milano, Italy

2. Dipartimento di Meccanica, Politecnico di Milano Milano, Italy

Abstract

The fatigue-life diagrams of injection-molded nylon 6 gears with different reinforcements are shown for various lubrication modes (dry, grease, splash oil lubrication) and for different meshing combinations (plastic/plastic and steel/plastic gears). Tests using a suitably designed back-to-back rig have been carried out, and the results compared with previous experiments, performed using unreinforced nylon 6 gears. 232 gears (70 in unreinforced and 162 in differently filled nylon) were tested. More than 700 · 106 cycles have been totalled. From test data, and from the “matrix” of the gear/pinion material combination, the capabilities of differently reinforced nylon 6 gears in terms of fatigue and wear resistance have been outlined. These capabilities are the basis for a proper material selection in plastic gear design.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/117/1/193/5633550/193_1.pdf

Reference6 articles.

1. Davoli, P., 1987, “La Resistenza Degli Ingranaggi in Plastica: Apparato di Prova e Prime Sperimentazioni,” (Plastic Gear Resistance: Test Apparatus), Organi di Trasmissione, October, pp. 134–138.

2. Crippa, G., and Davoli, P., 1989, “Fatigue Resistance of Nylon 6 Gears,” Proceedings ASME 5th International Power Transmission and Gearing Conference, Chicago, pp. 229–234 (also in “Kunststoffe-German Plastics,” 2/91, pp. 147–150).

3. Tsukamoto N. , MaruyamaH., and IkutaT., 1991, “Development of Low-Noise Gears,” JSME International Journal, Vol. 34, No. 2, pp. 245–251.

4. Tsukamoto N. , and MaruyamaH., 1991, “A Study for the Development of Plastic Worm Gears (Plastic Worm Gears Filled with Fiber and Solid Lubricant),” JSME International Journal, Vol. 34, No. 2, pp. 260–264.

5. Holman, J. P., 1989, Experimental Methods for Engineers, 5th edition, McGraw-Hill, New York, pp. 75–78.

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