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cutting tool material

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Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... the wear surfaces. The plastic deformation, shear action, and friction at these contact surfaces increase the temperature of the tool material, which further accelerates the mechanical, physical, and chemical attrition associated with tool wear. Excessively worn cutting tools ( Fig. 1a ) ( Ref 2...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0065827
EISBN: 978-1-62708-221-1
... in different types of operations. Cutting tools Materials selection Woodworking machinery Fe-0.48C-0.30Mn-0.90Si-8.50Cr-1.35Mo-1.20W-0.30V Fe-0.50C-0.30Mn-0.40Si-5.00Cr-2.00Mo (Other, general, or unspecified) fracture This example describes how a steel research engineer used failure analysis...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001269
EISBN: 978-1-62708-215-0
... lower matrix hardness and high sulfur content of the material, which contributed to lower ductility through increased nucleation sites. It was recommended that the hob manufacturer specify a minimum amount of required reduction for the original bar of tool steel material, to provide for sufficient...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... by a cutting tool. In gouging abrasion, the wearing surface is plastically deformed and work hardened by the abrasive forces, so that cutting and tearing of metal occurs on the work-hardened surface. Typical operations that involve gouging abrasion include crushing and primary grinding operations. The wear...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... stress levels. It involves both cutting and tearing types of wear, in which small chips of metal are removed from the wearing surface by the movement of the sharp points of rock, under considerable pressure, over the wearing surface. This type of action is very similar to machining by a cutting tool...
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
..., with an additive for corrosion protection and lubrication, should be directed uniformly into the cut. Wet cutting produces a smooth surface finish and, most importantly, guards against excessive surface damage caused by overheating. Figures 9(a) and (b) show the surface of quenched and tempered A2 tool steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001571
EISBN: 978-1-62708-229-7
... and the A533 Grade B plate material to a depth of about mid-wall. The microstructures of these specimens were compared to that of specimens cut from the Midland, Michigan reactor vessel, made from the same grade and thickness but never placed in service. These specimens were subjected to known thermal...
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
... Abstract This article describes the characteristics of tools and dies and the causes of their failures. It discusses the failure mechanisms in tool and die materials that are important to nearly all manufacturing processes, but is primarily devoted to failures of tool steels used in cold...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001271
EISBN: 978-1-62708-215-0
... material had a hardness of 42 to 46 HRC. Discussion The mechanism of chipping is generic to striking (or struck) tools. When a hardened steel tool is struck against a material as hard or harder than itself, conchoidal envelopes (appearing as white bands when viewed in cross section) of impact...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006818
EISBN: 978-1-62708-329-4
... Abstract This article discusses failure mechanisms in tool and die materials that are very important to nearly all manufacturing processes. It is primarily devoted to failures of tool steels used in cold working and hot working applications. The processes involved in the analysis of tool...
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
..., with an additive for corrosion protection and lubrication, should be directed uniformly into the cut. Wet cutting produces a smooth surface finish and, most importantly, guards against excessive surface damage caused by overheating. Figure 1 shows the surface of quenched and tempered A2 tool steel (59 HRC) cut...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001384
EISBN: 978-1-62708-215-0
... with bolts manufactured using controlled processes. Machine tools Milling cutters 4340 UNS G43400 Hydrogen damage and embrittlement Background The draw-in bolt and the collet from a vertical-spindle milling machine broke during routine cutting of blind recesses after a relatively long...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048150
EISBN: 978-1-62708-235-8
... Abstract Grease-wiper springs for cams formed from stampings of 0.25-mm thick carbon spring steel (0.65 to 0.80% C) fractured at the 0.025 mm radius on the stamped 135 deg corner at a 90 deg bend after 5,000,000 cycles. Tool marks 2 to 2.3 mm from the center of the stamped bend were disclosed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001058
EISBN: 978-1-62708-214-3
... enlarged mating surface to that in Fig. 3 . Notches in inner diameter were caused by removal tool; cut-out portion removed for SEM samples (see Fig. 5 and 6 ). 2.2├Ś. Metallography Microstructural Analysis Micrographic studies of a small cut from the threaded section identified the plug...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006801
EISBN: 978-1-62708-329-4
... tensile stress at an expanding cut edge exceeds a critical threshold, which is a function of the processing condition used to create the edge as well as material characteristics such as microstructural uniformity, strength, and cleanliness. Prediction of edge splits is challenging due to the difficulty...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001583
EISBN: 978-1-62708-217-4
... examination of other material processing parameters was warranted. This led to a further analysis of the external threads of the actual retaining rods from each manufacturer. A light etching cold worked layer, a result of the thread cutting operation, was observed. In general, the layer on all three...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001805
EISBN: 978-1-62708-241-9
... overall benefit. The failures listed above all manifested very early in the life of the subject tools. Given that many surgical tools are made from high-strength materials (often much stronger than any implants), they may exhibit increased sensitivity to environmentally induced fracture. However...
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
... designs having excessive section changes to perform on a production line. Only the actual cutting surface has full hardness, and the remainder of the tool, including the abrupt section change, is softer. Material Selection a Compromise Experience is widely called on in choosing a tool material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
...; and the cutting edge of the flutes was excessively hard. In his opinion, this high hardness made the edge brittle, so that the edge would chip during drilling. The chips caused the drill to bind and then shatter in a brittle manner because of excessive carbide segregation. Plaintiff alleged defective design...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001783
EISBN: 978-1-62708-241-9
... acting on the material are cut by more than half. The indenter material that was being used at the time of this analysis was an AISI D2 tool steel which is considered to be a high carbon, high chromium cold worked tool steel. The chemical composition is shown in Table 1 . It is stated to have...