1-20 of 79 Search Results for

regrinding

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003471
EISBN: 978-1-62708-195-5
...Abstract Abstract This article begins with a discussion on the driving forces for recycling composites. It reviews the recycling process of thermoset-matrix composites and thermoplastic-matrix composites. The recycling of thermoset-matrix composites includes regrind, chemical, energy recovery...
Image
Published: 01 January 1989
) Comparison of results Solid Shell Pieces per grind (average) 2,748 3,295 Number of runs 9 13 Number of regrinds 8 12 Regrinding time, min 30 28 Total pieces per tool 24,732 42,835 More
Image
Published: 30 August 2021
Fig. 11 Two views of an AISI S1 tool steel cutter die that cracked and spalled after regrinding. (a) As-received condition. (b) The cracks have been accentuated by use of magnetic particles. Also note the grinding scorch pattern (the dark parallel lines perpendicular to the cracks). More
Image
Published: 01 January 1989
or regrind. The tap used maintained thread size, quality, and concentricity with outside diameter within 0.075 mm (0.003 in.), as specified, throughout the entire production run. More
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002136
EISBN: 978-1-62708-188-7
... suited to high-volume applications in which variations in workpiece material or temperature, or in the stability of fixtures or machines, make it difficult to maintain hole size. Between regrinds to the adjustable type of inserted-blade reamers, minor adjustments (0.0025 to 0.005 mm, or 0.0001...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005178
EISBN: 978-1-62708-186-3
.... To avoid such major regrinding, blades should be kept free from large nicks and mushrooming. Most blades are ground to a slight negative rake, as shown in Fig. 6 . The intent is to cause the work metal to begin to flow from a slight bending action before actual shearing takes place. Blades provided...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005126
EISBN: 978-1-62708-186-3
... to regrind the finish-station rolls to avoid overbending the section; this would usually be determined by a trial run. When the change is to a metal of higher strength, one or more changes in procedure may be required to achieve desired results. In forming higher-strength metals such as stainless steels...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005104
EISBN: 978-1-62708-186-3
... and die Wear Patterns Wear patterns include the following: Flank Wear Flank wear can be characterized by length ( l in Fig. 3 ) or area. Flank wear is important because it determines the length that is lost in regrinding. Its origin is in adhesion and abrasion and increases...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003188
EISBN: 978-1-62708-199-3
... and workpiece Production requirements influencing the speeds and feeds selected Operating conditions, such as cutting forces and temperatures Tool cost per part machined, including initial tool cost, grinding cost, tool life, frequency of regrinding or replacement, and labor cost. The most economical...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005109
EISBN: 978-1-62708-186-3
... entered die 1.5 mm (0.060 in.). (c) Punch did not enter die. (d) H12 temper. (e) Higher-quality parts. (f) Soft. (g) Eliminated die breakage. (h) Run completed without regrind. (i) Half hard. On the basis of these studies and production experience, clearance per side...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003008
EISBN: 978-1-62708-200-6
... °C (350 °F), and the melt viscosity drops steadily as the temperature increases. Above 290 °C (550 °F), ABS decomposes by means of depolymerization and oxidation reactions and is then generally unsuitable for processing. Typical bulk density values of ABS pellets are 610 to 700 g/cm 3 . Regrind...
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
... per week to 0.166 per week, or two per quarter Badly ground broaches exceeded wear limit almost immediately and were withdrawn to eliminate breakage. A new regrind program was instituted because cutter grind could see forces from badly ground broach Part misalignment gave immediate overload...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003014
EISBN: 978-1-62708-200-6
... with heat-resistance properties that can compete with thermosets. The generally higher material cost for these thermoplastics over thermosets is offset by fast cycle times and the regrind recovery potential. Several thermoset injection molding processes for reciprocating-screw molding machines have been...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002187
EISBN: 978-1-62708-188-7
... initial and regrinding costs can be offset by longer tool life and higher speeds. Details of such a drill are shown in Fig. 3 . Fig. 3 Carbide-tipped drill for high-production drilling of zinc castings. Dimensions given in inches Speeds Speeds of 60 to 90 m/min (200 to 300 sfm...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002175
EISBN: 978-1-62708-188-7
... is the cost of tool and regrind per tool change ($/change), and t 1 is the tool changing time (min). Fig. 4 Schematic of the Bendix ACO system for milling. Source: Ref 3 The constants K 1 , K 2 , and K 3 depend on tool and workpiece materials, and β is an adjustable parameter in the range...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002134
EISBN: 978-1-62708-188-7
... rate against tool cost (material, heat treatment, fabrication, and regrinding for reuse). High-Speed Tool Steels In the early stages of broaching technology, broach tools were made from water-hardening tool steels. These tools were used on slow, screw-type broaching machines...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003017
EISBN: 978-1-62708-200-6
.... The resins used in rotational molding are generally more expensive than the pelleted resins used in many other processes because they must be powdered to 35 mesh. However, the process generates very low levels of regrind or scrap when operating properly. Parts have almost no flash if good molds are used...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002127
EISBN: 978-1-62708-188-7
... reducing tool costs, it is thought that the carbide teeth blunt rapidly during use, resulting in an additional cutting force that aids blade stability. One problem with PCD saws used in woodworking is that, should a tooth be chipped during use, it becomes necessary to regrind all the teeth on the saw...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005180
EISBN: 978-1-62708-186-3
.... The cutoff punch moves down to cut the strip and then returns to its retracted position. The die then withdraws into the tooling plate, allowing the end of the cutoff piece to be formed downward. Wire Cutoffs A typical wire cutoff ( Fig. 7h ) uses standard cutoff components with regrinding...