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Die drawing

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001121
EISBN: 978-1-62708-214-3
... because of a highly stressed condition produced by a sharp corner combined with low toughness from ineffective tempering. It was recommended that 25 other inserts that belonged to the same die be double tempered. Automotive components Die drawing Die stamping Forming dies D2 UNS T30402 Fatigue...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001118
EISBN: 978-1-62708-214-3
... drawing die, thus causing the poor surface quality observed. Fig. 11 EDX microprobe spectrum obtained on the wire base metal using a 20kV beam voltage. Fig. 12 EDX microprobe spectrum obtained on a typical inclusion in spring 2 using a 20kV beam voltage. The results of testing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001142
EISBN: 978-1-62708-228-0
... specification of JIS SG 26, but their elongation was approximately 18∼25%. This value die not satisfy the specification requiring more than 28%. Table 2 Mechanical properties of the LPG cylinder. Yield strength MPa Ultimate strength tensile MPa Elongation % Sample 1 326 534 25.4 Sample...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001443
EISBN: 978-1-62708-235-8
... occurring. It seems probable that the explanation of this lies in the fact that when the wire passes through the die the preponderating stress is a compressive one, whilst the pull during drawing is, in general, only a fraction of the ultimate tensile strength of the wire. Failure in service was, of course...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... D 135 Grooves and roughness in the vicinity of re-entrant angles on die castings Soldering, die erosion D 140: Depressions in the casting surface D 141 Casting surface depressions in the vicinity of a hot spot Sink marks, draw or suck-in D 142 Small, superficial cavities in...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
... minimizing stress concentrators and maintaining smoothly machined surfaces. Tool and die failures due to breakage, which are generally catastrophic, are the most spectacular and draw the most attention from the failure analyst. Such failures are usually the easiest to diagnose, but the analyst should be...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0009222
EISBN: 978-1-62708-180-1
... Fig. 1 This die of manganese oil-hardening steel cracked (highlighted by magnetic powder) at the sharp change of section in quenching. A fillet or even an undercut could have eliminated the failure. Differential hardening which leaves the fillet soft can also help as can the use of an air...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001646
EISBN: 978-1-62708-219-8
...× The formation of surface martensite during cold drawing of high-carbon steel wire is reported to be caused by inadequate lubrication, improper die profile, and excessive reduction in deformation. Inadequate lubrication or breakdown of the lubrication film during wire drawing results in greater...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
..., internal bursts or chevron cracks, cracks on free surfaces, cracks on die-contacted surfaces Metal-flow-related problems: for example, end grain and poor surface performance; inhomogeneous grain size; shear bands and locally weakened structures; cold shuts, folds, and laps; flow-through defects...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
... absence of a ceramic-to-metal bond in this portion of the termination. Termination fracture occurred when die shear forces exceeded the mechanical bond force between the ink and the substrate during die shear testing. During manufacturing, fracture occurred when the resistor assembly was manufactured with...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... Nitrides in Anti-Galling Property of Die Materials and Surface Coatings , Metal Transfer and Galling in Metallic Systems , Merchant H.D. and Bhansali K.J. , Ed., The Metallurgical Society , Warrendale, PA , 1986 , p 197 – 216 163. Podgornik B. , Vizintin J. , and Hogmark...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
... range of carbon steel, low-alloy steel, stainless steel, age-hardening aluminum alloys, etc.), its general product form (e.g., wrought, cast, powder metallurgy, etc.), and the processing method (e.g., forged, die cast, injection molded, etc.). All of these factors must be considered when the shape of a...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... a melted region found on an AISI D2 powder metallurgy die after heat treatment. Specimen etched with Marble's reagent As a final example of a heat-treatment-related failure, Fig. 34 shows the microstructure of an AISI D2 draw die insert that exhibited galling and chipping after limited...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... for steels. However, if the area to be studied is white or with low contrast, it may be difficult to determine where the nickel plating ends and the surface begins, as shown in Fig. 3 (d). Figure 4 shows an example of ion-nitrided hot work die steel with a brittle white-etching iron nitride surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001447
EISBN: 978-1-62708-235-8
... appearance of components which have failed. It is for this reason that hydrogen embrittlement can be such a source of danger. References 1. Baukloh W. , und Stromburg W. : Uber die Wasserstoffkrankheit einiger Metalle . Z. Metallkunde 29 ( 1937 ), S. 427 / 30 . 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... longitudinal discontinuities in bar or wire stock are caused by imperfections in the drawing die. They are similar to folds and can act as stress raisers during forming processes. Seams have blunt tips. The two sides of a seam do not necessarily match ( Fig. 36 ). Fig. 36 (a) Surface of Ti-6Al-4V bar...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
... the laboratory for inspection and comparison. The grease-wiper springs that fractured were of an old design, but they had been made in a new die. A medium-carbon helical spring was installed in a machine assembly that was welded into its final location. During welding, which was conducted...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
... root cause analysis service life anomalies stress analysis ANALYZING FAILURES is a critical process in determining the physical root causes of problems. The process is complex, draws upon many different technical disciplines, and uses a variety of observation, inspection, and laboratory...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... Microstructural damage due to shearing, blanking, piercing Overheating damage during spring winding Laps and cracks due to shot peening Stress-corrosion cracking due to use of improper die lubricants Grain growth Incomplete phase transformation Quench cracks Decarburization...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
... may result in premature failure of the joints. Finite element analysis is an ideal design tool for analyzing small integrated circuit-chip packages that come in an ever-changing variety of sizes, shapes, and applications. The chips are complex fabrications of silicon or other type of die material...