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operating overload

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Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002149
EISBN: 978-1-62708-188-7
... error) or broken should the force exceed the overload limit. Fig. 9 Plot of cutting force against time for four separate tooling operations: facing, roughing, and finishing (2). Limit 1 is monitored during rapid traverse to reduce reaction time. Limit 2 is calculated from the highest load...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005113
EISBN: 978-1-62708-186-3
... question is at what point above bottom stroke is the stated capacity reached. The reason this is important is because of the danger of overloading the brake. If the operation being performed on the brake requires tonnage at or near the maximum rating of the brake, it should be performed within...
Image
Published: 01 January 1990
Fig. 17 Effect of composition, combination, and electrical characteristics on contact life of various materials. 24 V dc, 1500 A: A comparison of several polarized contact material combinations for their susceptibility to welding when subjected to an overload of 1500 A at 24 V. The 50Ag-50WC More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005342
EISBN: 978-1-62708-187-0
... was in service? It is important to understand the loads applied to the part as well as the operating environment. This background information can provide some insight into the expected fracture characteristics. Examination Methods The evaluation of a failed casting must include visual inspection...
Image
Published: 01 January 1989
Fig. 9 Plot of cutting force against time for four separate tooling operations: facing, roughing, and finishing (2). Limit 1 is monitored during rapid traverse to reduce reaction time. Limit 2 is calculated from the highest load and is used to monitor the roughing tool. Limit 3 provides More
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
... on the final dimensions of the part being sized. Hydraulic presses are sometimes favored because they are readily equipped with limiting devices that prevent overloading and possible die breakage. Smaller hydraulic presses (about 70 kN, or 8 tonf, capacity) can be operated at speeds of up to 250 strokes...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005419
EISBN: 978-1-62708-196-2
... Abstract Understanding fatigue crack growth is critical for the safe operation of many structural components. This article reviews the standard fracture mechanics and methods to determine the crack growth rate for a material and loading condition experimentally. It also addresses the two most...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 2024
DOI: 10.31399/asm.hb.v12.a0006845
EISBN: 978-1-62708-387-4
... crack arrest marks that indicate variation in service conditions. Possible variables include exposure to corrodents, temperature, speed, load magnitude, and operating versus out-of-service periods. Crack arrest marks extend from the fracture-initiation site toward the region of final overload failure...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... sufficient to fracture the screws in ductile overload. Example 2: Forming Cracks on Stainless Steel Wire. Cold-drawn 6.4 mm (0.25 in.) diameter type 303 stainless steel wire sections failed during a forming operation. All wires failed at a gradual 90┬░ bend. Investigation High-magnification...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... Abstract Mechanical springs are used in mechanical components to exert force, provide flexibility, and absorb or store energy. This article provides an overview of the operating conditions of mechanical springs. Common failure mechanisms and processes involved in the examination of spring...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... Abstract Overload failures refer to the ductile or brittle fracture of a material when stresses exceed the load-bearing capacity of a material. This article reviews some mechanistic aspects of ductile and brittle crack propagation, including a discussion on mixed-mode cracking, which may also...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003327
EISBN: 978-1-62708-176-4
.... The factors that are in essence being ignored by this approach represent real phenomena that occur as gears operate. It is critical to address this fact in the design of test rigs and in their day-to-day operation. For example, it is important to conduct tests in a manner that precludes overloading; in a set...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002437
EISBN: 978-1-62708-194-8
... complexity needed, however, to track well in all conditions. Channel capacity Limited. Has maximum amount of information that can be handled at a given time. Can be made arbitrarily large. Capacity limited only by design. Overload operation May be able to perform better in certain cases of overload...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
..., insufficient or unsuitable lubrication, overloading, impact loading, vibration, excessive operating or environmental temperature, contamination by abrasive matter, entry of harmful liquids, and stray electric currents. The deleterious effects resulting from the above factors are as follows, though...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005112
EISBN: 978-1-62708-186-3
... are needed for satisfactory operation in achieving the long life and extremely close clearances of expensive dies. Intricate dies require presses that run with better guiding and deflection characteristics. One example of this tooling is the progressive die, which combines many operations in one press...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000619
EISBN: 978-1-62708-181-8
..., transgranular fracture, microvoid coalescence, corrosion fatigue, fatigue striations, tensile-overload fracture, stress-corrosion cracking, and pitting corrosion of these alloys. copper alloys corrosion fatigue fatigue fracture fatigue striations fractograph stress-corrosion cracking tensile...
Book Chapter

By Mark Hayes
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002377
EISBN: 978-1-62708-193-1
... support the maximum applied stress, at which time overload failure will occur. Fatigue is a likely failure mechanism for all types of springs (compression, extension, torsion, leaf, presswork, spiral, constant force, disc, etc.) as well as for all spring sizes (fatigue occurs in springs made from...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
... of high-strength steel shafts. Baking treatments applied immediately after plating are used to ensure removal of hydrogen to the extent possible. Ductile fracture of shafts is usually caused by accidental overload and is relatively rare in normal operation. Creep, a form of distortion at elevated...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
.... Failure Origins Failures occur for a number of reasons, which may be related to operation, design, materials selection, material quality, manufacturing practices, service environment/conditions, and misuse. The largest proportion of lifting-equipment failures are of operational origin. Overloading...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
... (initiation sites), a region of progressive fatigue crack propagation, and a final fast overload fracture zone. Identification of the location and nature of origin sites is important in failure analysis of fatigue, as fatigue crack initiation is frequently the life-controlling step in the failure process...