1-20 of 547 Search Results for

shape distortion

Sort by
Image
Published: 01 September 2008
Fig. 29 Effect of steel hardenability on shape distortion More
Image
Published: 30 April 2020
Fig. 10.9 Finite-element analysis predictions on shape distortion for 10 mm (0.4 in.) right circular cylinders during sintering at 1390 °C (2535 °F). Half of the cylinder is shown for the initial shape at the start and after hold times of 0, 2, and 4 h. Source: Chung et al. ( Ref 6 ) More
Image
Published: 01 September 2008
Fig. 73 Distortion of individual tooth shape after induction hardening caused by volume changes. Source: Ref 15 , 20 , 55 More
Image
Published: 01 January 2022
Fig. 5.7 Distortion without change in volume even though the shape changes More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630055
EISBN: 978-1-62708-270-9
... Abstract Distortion failures are readily identified by the inherent change in size and/or shape. They are serious because they can lead to other types of failure or may even cause complete collapse of structures, such as bridges, ladders, beams, and columns. Distortion failures may...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900119
EISBN: 978-1-62708-350-8
... Abstract Distortion is defined as an irreversible and usually unpredictable dimensional change in a component due to thermal processing or temperature variations and loading in service. This chapter describes two types of distortion: size distortion and shape distortion. It addresses how...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900245
EISBN: 978-1-62708-350-8
... material may have to be selected. Distortion Distortion is always a contentious subject. Despite the low nitrocarburizing process temperature, there is no absolute guarantee that distortion will not occur. Distortion can be classified as either shape distortion (warpage) or size distortion ( Ref 1...
Image
Published: 01 January 2015
Fig. 5.16 Grain shape of titanium. (a) Distorted grains are evidence of cold work. (b) Deformed grains in (a) changed to strain-free grains by recrystallization at 790 °C (1450 °F). Etchant: 10% HF-5%HNO 3 . Original magnification: 250x More
Image
Published: 01 November 2023
show shark-fin-shaped distortion, which affects rise time measurements. (c) Generated photocarriers trigger latch-up at high voltages, damaging the ultra-thin sample. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900325
EISBN: 978-1-62708-358-4
... corrections on the part when hardened. Heating to the austenitizing temperature for hardening is another stage in the hardening process where distortion, and even cracking, especially for tools and dies with complex shapes or major changes in section thickness, may take place. Single and double preheating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410487
EISBN: 978-1-62708-265-5
... heat treatments designed to minimize undesirable residual stress, quench cracking, and distortion. Some comments and references to modeling of residual stress and distortion conclude the chapter. Origins of Distortion Distortion of a part may be classified as size distortion or shape distortion...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290201
EISBN: 978-1-62708-319-5
..., distortion, postsintering treatments, and mechanical properties are presented for each. The shaping options include powder-binder approaches such as binder jetting, injection molding, extrusion, slip and slurry casting, centrifugal casting, tape casting, and additive manufacturing. Sintering options...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... section provides information on the residual stresses and distortion that remain after welding. The focus then shifts to distortion control of weldments. Inclusions and cracking are discussed in detail. The chapter also discusses the causes for reduced fatigue strength of a component by a weld: stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290001
EISBN: 978-1-62708-319-5
...; components near the center of the furnace heat slower. Other factors include gravity and support friction. Thus, shape distortion and dimensional variation are inherent parts of the powder-binder processes. Distortion is related to nonuniform final size, seen by shape loss after sintering. Figure 1.3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
..., shape distortion, loose metal, and undesirable surface textures. The occurrence of any one or a combination of these conditions can render the sheet metal part unusable. Fracturing Fracturing occurs when a sheet metal blank is subjected to stretching or shearing (drawing) forces that exceed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390241
EISBN: 978-1-62708-459-8
... Abstract Drawing is a bulk deformation process that involves significant surface generation and high pressures. This chapter provides an overview of the mechanics and tribology of wire, bar, tube, and shape drawing. It presents important equations for calculating stresses, forces, friction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900013
EISBN: 978-1-62708-350-8
... heat treatment process in the form of either: Shape distortion: a change in geometrical form, such as curving, twisting, or bending Size distortion: a change in workpiece volume due to either growth or shrinkage Distortion can be minimized but not eliminated. Stresses are induced...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... information on the causes and characteristics of residual stresses, distortion, and quench cracking of steel. austenite transformation continuous cooling transformation diagram cooling rate distortion isothermal transformation diagram quench cracking quenchants quenching steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130255
EISBN: 978-1-62708-284-6
...). Basic Distortion Mechanism Shape and volume changes occurring during heating and cooling can be attributed to three fundamental causes (Ref 12) : Residual stresses will cause shape change when they exceed the yield strength of the material. Stresses caused by differential expansion due...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630035
EISBN: 978-1-62708-270-9
... Abstract Residual, or locked-in internal, stresses are regions of misfit within a metal part or assembly that can cause distortion and fracture just as can the more obvious applied, or service, stresses. This chapter describes the fundamental facts about residual stresses and discusses...