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metal cutting

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0048091
EISBN: 978-1-62708-224-2
... flame cutting and welding. Hardness of the heat-affected layer was 248 HB. Chemical analysis showed the metal to be 1020 steel. The base metal (hardness, 156 HB) had a coarse as-rolled structure and a grain size of ASTM 00 to 4. The coarse grain size indicated that the weldment (stop block and guide...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0046242
EISBN: 978-1-62708-236-5
... in the gear teeth (found at visual inspection) was composed of the same material as the metal in the coupling. Beach marks and evidence of cold work, typical of fatigue failure, were found on the fracture surface. Chips remaining in the analysis cut were difficult to remove, indicating a strong magnetic field...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001435
EISBN: 978-1-62708-236-5
... adjacent to the sides of the keyway, which had been re-cut shorter than the original one after the welding repair. Fig. 2 Surface of fracture. × 1 1 4 Fig. 3 Keyway filled with weld metal. × 1 1 4 Hardness tests showed values of 155 VDP for the material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001440
EISBN: 978-1-62708-235-8
...Abstract Abstract A portable propane container with a name-plate soldered onto it exploded in service. When the vessel was inspected afterwards, it was found to have developed a crack in the top end plate. A portion of the end plate cut out to include the midlength and one termination...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001421
EISBN: 978-1-62708-235-8
... indicated by the arrows in Fig. 1 . It will be noted that the majority originated at grooves in the weld metal, the grooves having apparently acted as stress-raisers. In order to ascertain the depth to which these had developed a cut was made in the plane of the weld at its mid-width and the surface etched...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047508
EISBN: 978-1-62708-221-1
...Abstract Abstract A riveted 0.25% carbon steel oil-storage tank in Oklahoma was dismantled and reassembled in Minnesota by welding to form a storage tank for soybean oil. An opening was cut in the side of the tank to admit a front-end loader. A frame of heavy angle iron was welded to the tank...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001408
EISBN: 978-1-62708-220-4
... at the time. About five months later, the HP piston rod of the No. 1 compressor failed in a similar manner. Specimens for microscopic examination were cut from the rod in the region of the failure and from the extreme end that had been situated above the piston and hence not subjected to an appreciable rise...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001735
EISBN: 978-1-62708-220-4
...Abstract Abstract A sample tube was removed from a reformer furnace for life assessment after 69,000 h of service. Sections were cut from the tube, which was a spindle cast A297 Grade HK 40 (25 Cr, 20 Ni, 0.4 C) austenitic steel of 122.5 mm OD and 10.5 mm nominal wall thickness. They were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048777
EISBN: 978-1-62708-229-7
... over 1% C, higher than the carbon content of the base metal. The cracks in the drain groove surface could have occurred after arc gouging, during subsequent stress-relieving, or during the hydrostatic test. Flame cutting is not recommended for the type of steel used in the boiler drum because it can...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001030
EISBN: 978-1-62708-214-3
...Abstract Abstract Cracks were discovered between interference-fit fasteners (MoS2-coated Ti-6Al-4V) that had been incorporated into a fighter aircraft primary structural frame (D6ac steel) to enhance structural fatigue life. Examination of sections cut from the cracked frame established...
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
.../asm.hb.v16.a0002120 4. Natchman E.S. , Metal Cutting and Grinding Operations , Machining , Vol 16 , ASM Handbook , ASM International , 1989 , p 126 – 127 10.31399/asm.hb.v16.a0002128 5. Weindel H.F. , Tool. Prod. , Nov 1981 6. Finn M.E. , Machining of Carbon...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
...Abstract Abstract An I-beam of IS-226 specification—I-section dimensions of 450 x l50 x 10 mm (17.7 x 5.9 x 0.4 in.) and a length of 12.41 m (40.7ft)—was flame cut into two section in an open yard near these a coast under normal weather conditions. After approximately 112h, the shorter section...
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
... impingement angles (10 to 30°), elastomers cut and tear more readily, leading to increases in wear rates. Hard, brittle materials usually perform better under these conditions. For materials intermediate in their mechanical properties, for example, some metals, the effect of impingement angle depends...
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
..., or alternatively, increasing their fracture toughness, leads to lower wear rates ( Ref 7 , 10 ). Abrasive wear mechanisms involving plastic deformation, cutting, and fragmentation occur predominantly in materials with relatively high elastic modulus, that is, metals, ceramics, and rigid polymers...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001146
EISBN: 978-1-62708-229-7
... the longitudinally-cut specimens. This difference is not totally unexpected, as the 8th Edition of the Metals Handbook cites similar energy differences in 0.12% C steel plate. The fracture faces for these specimens showed the tremendous amount of directionality associated with the rolling direction of this plate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001449
EISBN: 978-1-62708-221-1
... was present in this instance. The hardness of the weld metal proved to be 215 VDP and that of the thermally affected zone a maximum of 280 VDP. Fig. 6 Crack at margin of weld deposit. × 7 Fig. 7 Crack, shown in figure 6 , at higher magnification. × 60 A specimen was cut adjacent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001514
EISBN: 978-1-62708-218-1
... and rocker panel flange Visual examination revealed that the sill and the rocker panel weldment had come apart along the full length of the rear floor pan. An approximately 66cm (26″) portion of the separated rocker panel was cut and removed from the vehicle. This is shown in Figure 4 . The mating...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001327
EISBN: 978-1-62708-215-0
... species were identified. Microstructural Analysis Metallurgical cross sections of the reducer were cut, mounted, and polished. The specimens were etched in a 10% nital solution and then examined. The base metal, weld metal, and heat-affected zone (HAZ) microstructures ( Fig. 8 , 9 , 10...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001729
EISBN: 978-1-62708-217-4
... of the waste towel disposal unit ( Fig. 3 ) appeared to be close to the explosion center. Fourth, Fig. 6 shows a piece from the lefthand side of the waste towel disposal unit which contains a cut. Note that metal has extruded out of the bottom and sides of the cut. Obviously, this aluminum piece has been...
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
...Generic four-step contemporary practice for many metals and alloys Table 2 Generic four-step contemporary practice for many metals and alloys Surface Abrasive/size Load, N(lbf) Speed,rpm/direction Time, min Waterproof PSA paper 120/P120-, 180/P180-, or 240/P280-grit SiC, water...