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gear performance

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320185
EISBN: 978-1-62708-347-8
... gear performance for a particular application. gear design gears heat treatment material selection THE SUCCESSFUL DESIGN and manufacture of gears is influenced largely by design, material selection, and proper heat treatment. Close cooperation between the design engineer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320159
EISBN: 978-1-62708-347-8
... Abstract Several limitations in achieving optimal gear performance with conventional nitriding have led researchers to work on a variety of novel and improved nitriding processes. Of these, ion/plasma nitriding offers some promising results, which are reviewed in this chapter. The chapter...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320001
EISBN: 978-1-62708-347-8
... treat process, and equipment used. Although grinding can improve the geometry of gear teeth even with high distortion, this increases manufacturing cost significantly. Furthermore, ground gears with high distortion may not perform satisfactorily due to the fact that grinding may remove the required case...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900153
EISBN: 978-1-62708-350-8
... of ion nitriding pressure that is too low (toward high vacuum), resulting in no nitriding at the tooth root. Source: Ref 1 As described below, surface metallurgy—in terms of growth, compound layer formation, and case uniformity—is critical to gear performance. Growth By selecting...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250311
EISBN: 978-1-62708-345-4
... Abstract Mechanical tests are performed to evaluate the durability of gears under load. The chapter first discusses the processes involved in the computations of stress for test parameters of gear. Next, the chapter reviews the four areas of specimen characterization of a test program, namely...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
..., process advantages, forms, tolerances, design, tooling, performance, quality control, and inspection of P/M gear manufacture. In addition, it presents examples that illustrate the versatility of the P/M process for gear manufacture. bevel gears face gears gears helical gears powder metallurgy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
... Research performed by the Gear Research Institute has shown that contour-hardened gears performed better than carburized gears in single-tooth and power-circulating bending strength tests. Carburized gears are better in rolling contact. Note that carburized gears do have higher surface hardness. Figure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900219
EISBN: 978-1-62708-350-8
... treatments in terms of applications and performance on tool steels. Gear Heat Treatment Most gear manufacturing depends on control tolerance and precision treating in terms of distortion. This means that a process that can offer a significant reduction in distortion and an improvement in gear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250163
EISBN: 978-1-62708-345-4
... in Fig. 1(a) , it is estimated that 90% of gear carburizing is performed in a carbonaceous gas atmosphere. In this type of carburizing, carbon is induced into the ferrous base material heated in the gaseous atmosphere with a carbon potential that allows the surface to absorb carbon. The most commonly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250039
EISBN: 978-1-62708-345-4
... requirements include machinability, forgeability, and response to heat treatment as it affects fabrication and processing. Service requirements are related to the ability of the gear to perform satisfactorily under the conditions of loading for which it was designed and thus encompass all mechanical-property...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
... 6260). Table 3 lists specific application areas for commonly used gear steels. Many high-performance gears are carburized. Some special-purpose steel gears are case hardened by either carbonitriding or nitriding. Other special-purpose gears, such as those used in chemical or food-processing equipment...
Image
Published: 01 December 1999
Fig. 7 Minimum effective case depth for carburized gears, h e min . The values and ranges shown on the case-depth curves are to be used as guides. For gearing in which maximum performance is required, detailed studies must be made of the application, loading, and manufacturing procedures More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320033
EISBN: 978-1-62708-347-8
... on the characterization of the case required, the available equipment, and the quantity of parts to be carburized. Nowadays, gears are mostly gas carburized and, hence, this method is described in detail below. Gas Carburizing It is estimated that 90% of gear carburizing is performed in a carbonaceous gas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250019
EISBN: 978-1-62708-345-4
... practically to avoid gear failure. friction gear lubricants gears Hertzian fatigue scuffing wear GEAR PERFORMANCE is profoundly influenced by tribology, which can be defined as the science and technology of interacting surfaces in relative motion, or, alternatively, the science and technology...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320171
EISBN: 978-1-62708-347-8
... Abstract Carbonitriding is a process in which carbon and alloy steel gears are held at a temperature above the transformation range in a gaseous atmosphere of such composition that the steel absorbs carbon and nitrogen simultaneously. The gears are then cooled at a specific rate to room...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420001
EISBN: 978-1-62708-452-9
... is designed with a specific function in mind. The question is if this gear will perform the function that was intended by the designer. Spur Gear and Pinion A spur gear and pinion ( Fig. 1-1 ) is a parallel-axis unit with tooth forces and motion at exactly 90° from the central axis of each part. Due...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360127
EISBN: 978-1-62708-435-2
...; w is the angular velocity of the component, in rad/s; and D is the pitch diameter of the component, in meters. To measure e for the ring gear and coupling, a static lift test was performed before package testing; the upper half of the housing was removed and a metal chain was placed around...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 March 2024
DOI: 10.31399/asm.tb.gvar.t59360121
EISBN: 978-1-62708-435-2
... the recommended total transmission errors of gear teeth. The tolerances given on this curve for different pitch-line velocities of gears are found to perform well. Fig. 7.1 Relationship of transmission error with pitch-line velocity for 10 g vibration level Selection of Gearbox Parameters...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420027
EISBN: 978-1-62708-452-9
... and Performance , American Society for Metals , 1980 , p 172 - 183 . 2. Fowle T. I. , Gear Lubrication: Relating Theory to Practice , in Source Book on Gear Design, Technology and Performance , American Society for Metals , 1980 , p 205 - 219 . 3. Alan Hichcox, Computer-Aided Gear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250245
EISBN: 978-1-62708-345-4
... Abstract Carbonitriding is a modified form of gas carburizing. It is performed in a closed furnace chamber with an atmosphere enriched with a gaseous compound of carbon and nitrogen. This chapter provides information on the carbonitriding of steels, the applications of carbonitriding...