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die failure

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
... for flat extrusion die and account for bearing length, fillet radius, temperature, and strain rate. They were shown to provide useful information for the analysis and prevention of die failures. extrusion die fatigue failure die design tool steel cracking fractography strain rate H13 (hot...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001120
EISBN: 978-1-62708-214-3
... Abstract A segment from a premium-quality H13 tool steel die for die casting of aluminum failed after only 700 shots. The segment was subjected to visual, macroscopic, hardness, and metallographic testing. The investigation revealed that failure occurred as a result of fatigue at an electrical...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001848
EISBN: 978-1-62708-241-9
... surface of the die was covered with fatigue cracks and many fillets had been plastically deformed. Several other types of damage were also observed, including areas of oxidation, corrosion pits, voids, abrasive wear, die adhesion, and thermal fatigue. Fatigue cracking was the primary cause of failure with...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001908
EISBN: 978-1-62708-235-8
... shrinkage defects in the castings. Most of the components failed to meet required mechanical properties because of these casting defects. Bombs (weapons) Tailcones Die castings Heat checking Inclusions Shrinkage Porosity A356 UNS A13560 Casting related failures References 1...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090971
EISBN: 978-1-62708-222-8
... Abstract A die-cast zinc adapter used in a snowthrower failed catastrophically in a brittle overload manner. The component had a chemical composition similar to standard zinc alloy ZA-27 (UNS Z35840), although the iron content was much higher and the copper slightly lower. The mechanical...
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
... Abstract An AISI D2 tool steel insert from a forming die used in the manufacture of automotive components failed prematurely during production. Results of various analyses and simulation tests indicated fatigue failure resulting from improper heat treatment. The fatigue fracture originated...
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.power.c9001536
EISBN: 978-1-62708-229-7
.... Analyses of four failed components from nuclear plants are then described to illustrate the kinds of failures seen in service. The failures discussed are (1) intergranular stress-corrosion cracking of core spray injection piping in a boiling water reactor, (2) failure of canopy seal welds in adapter tube...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048620
EISBN: 978-1-62708-225-9
... defect. Fasteners Intergranular corrosion Zinc-aluminum die casting alloy Stress-corrosion cracking The two nuts shown in Fig. 1(a) and (b) were used to secure the water-supply pipes to the threaded connections on hot-water and cold-water taps. The nut used on the cold-water tap ( Fig...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089456
EISBN: 978-1-62708-223-5
... observed. The fracture was found to have originated near the high-stress region of the die face examination of the fracture surface. Failure of the die was concluded to have originated in an area of abnormally high hardness which is prone to microcracking during heat treatment for this grade of tool steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001162
EISBN: 978-1-62708-220-4
... Abstract Some 99.90 pure tin tubes (0.15 mm thick) used for packaging a chemical compound cracked on bending and underwent brittle fracture prior to filling, while others remained ductile and showed no sign of failure. Examination showed that specimens prepared by mechanical methods such as...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001641
EISBN: 978-1-62708-235-8
... minimized. Die castings Electroplating Porosity Shrinkage Surface defects Zinc Casting-related failures Near-surface porosity in zinc die castings that were subsequently plated with copper, nickel, and bright chromium was causing blemishes in the plating. The platers had already performed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001250
EISBN: 978-1-62708-223-5
... Abstract A broken cross-recessed die was examined. Examination of the unetched, polished section for impurities revealed several coarse streaks of slag. The purity did not therefore correspond to the requirements set for a high speed tool steel of the given theoretical quality DMo 5. After...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001270
EISBN: 978-1-62708-215-0
... forgings and from material flow during trimming and/or material flow during forging. Closed-die forging Cracking (fracturing) Die forgings Alloy steel Carbon steel Metalworking-related failures Intergranular fracture Selected References • Failures Related to Metalworking...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001284
EISBN: 978-1-62708-215-0
... dies, design Die castings Sporting goods AM60A UNS M10600 Casting-related failures Selected Reference • Failures Related to Casting , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 103 – 155 10.31399/asm.hb.v11.a0003508...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001123
EISBN: 978-1-62708-214-3
... Abstract Extensive cracking was found in a batch of die-cast ZAMAK 3 solenoid valve seats during commissioning of the system in which they were installed. Scanning electron microscopic and chemical analyses conducted on one of the failed valve seats showed that the composition of the alloy was...
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 Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... Abstract This article focuses on the general root causes of failure attributed to the casting process, casting material, and design with examples. The casting processes discussed include gravity die casting, pressure die casting, semisolid casting, squeeze casting, and centrifugal casting. Cast...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001005
EISBN: 978-1-62708-215-0
... forging the steering arm required repeated hits of the forging billet using a series of three separate die cavities. The arm was forged into a U-shape in the second die cavity, during which there was a distinct possibility of entrapping surface oxide scale in the region of the inner bend radius of the...
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...