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jigging

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Published: 01 January 1993
Fig. 21 Self-jigging joint configurations More
Image
Published: 01 January 1993
Fig. 8 Methods that can be used to make solder joints self-jigging. Source: Ref 5 More
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Published: 01 January 2000
Fig. 8 Jig for double-notched shear test More
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Published: 01 January 2000
Fig. 11 Compression testing of thin-sheet specimens. (a) Sheet compression jig suitable for room-temperature or elevated-temperature testing. (b) Contact-point compressometer installed on specimen removed from jig. Contact points fit in predrilled shallow holes in the edge of the specimen. More
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Published: 01 January 1993
Fig. 50 Specimens (a) and a jig (b) for express shear strength testing of brazed joints. Source: Ref 47 More
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Published: 01 January 1993
Fig. 12 Application of jigs to maintain flatness and to minimize distortion when welding thin sheet material More
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Published: 01 January 2000
Fig. 11 Standard end-quench (Jominy) test specimen and method of quenching in quenching jig More
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Published: 01 August 2013
Fig. 5 Jominy end-quench hardenability test. (a) Standard end-quench test specimen and in a quenching jig. (b) Hardness plot and cooling rate as a function of distance from the quenched end More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001397
EISBN: 978-1-62708-173-3
... of wire solder and flux is not recommended because of the rapidity of heating and the potential hazard of electrical shock. The preassembled workpieces are positioned in a grounded jig or clamp, and the movable electrode is brought in contact with the workpiece to complete the circuit. When the power...
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Published: 01 January 1989
Fig. 3 Good and bad methods for workpiece support and clamping: (a) Clamping forces should direct the work against the points of location and work support. (b) Whenever possible, cutting forces should act against the fixed portion of a jig or fixture. (c) The points of clamping should be in line More
Image
Published: 01 January 1993
diode Vacuum chamber diameter, mm (in.) 610 (24) Maximum vacuum, Pa (torr) 0.00133 (1 × 10 −5 ) Fixture Holding jig Pumpdown time, min 30 Brazing power, kV; mA 18; 20–30 Beam spot size diameter, mm (in.) 4.76 ( 3 16 ) Brazing vacuum, Pa (torr) 0.00133 (1 × 10 −5 More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001454
EISBN: 978-1-62708-173-3
... the liquidus of the filler metal Components to be furnace brazed are preassembled with the filler metal preplaced for brazing. Preferably, the parts should be self-jigging. External jigs and fixtures can be used when absolutely necessary, but add extra capital and operating expense, because the parts...
Book Chapter

By Roy E. Beal
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001396
EISBN: 978-1-62708-173-3
... place by capillary attraction into the joints. The solder does not wet surfaces that are not coated with flux. Jigs and fixtures are normally essential to hold components at proper clearances for joining purposes and to maintain overall dimensions of the finished product. They should not be wetted...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003265
EISBN: 978-1-62708-176-4
... is indicated by the dashed line. Thin-Sheet Specimens In testing thin sheet in a compression jig, approximately 2% of the specimen length protrudes from the jig. Buckling of this unsupported length can occur if there is misalignment of the loading train such that it does not remain coaxial...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001431
EISBN: 978-1-62708-173-3
... level, filler metal, heat input, preheat Critical restraint Restraining jig Costly machining and set-up Tekken test Weld metal root cracking, HAZ hydrogen cracking Joint geometry, process, filler metal, heat input, preheat Critical preheat None Low-cost Circular groove test Weld metal hot...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002148
EISBN: 978-1-62708-188-7
..., is not a fixture. The specific purpose of a fixture is to locate and hold a workpiece against the machining forces. A jig differs from a fixture in that it not only locates and holds a workpiece, but also guides the tool to ensure accurate positioning. Thus, fixtures are more open in design than jigs to facilitate...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002430
EISBN: 978-1-62708-194-8
.... The key consideration was that the replacement part had to be interchangeable with the original one. Large-scale production was not possible until Eli Whitney invented the jig. Although he is best remembered for his invention in 1793 of a machine for combing the seeds out of cotton, the gin (which any...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
..., process restraint level, filler metal, heat input, preheat Critical restraint Restraint jig Costly machining and setup Tekken test Weld metal root cracks, HAZ hydrogen cracks Joint geometry, process filler metal, heat input, preheat Critical preheat None Low cost Circular groove test Weld...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001372
EISBN: 978-1-62708-173-3
... during welding and contraction during cooling of the welded sheet-metal section or structure is proportional to the amount of heat applied to the metal as well as to its inherent stiffness and rigidity. Jigs and fixtures are essential to counteract the adverse effects of welding heat. Figure 12...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005927
EISBN: 978-1-62708-166-5
..., such as nitrogen, during the sealed quenching. Operation of Fluidized-Bed Furnaces In practice, general-purpose baskets are used for batch processing, and racks are used only for large tools and dies or shafts. The design of baskets, grids, racks, jigs, and fixtures should minimize any tendency...