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heavy cutting

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Published: 01 May 2018
FIG. 6.5 A typical lathe before the use of high-speed steel. The lightweight lathe had to be replaced to withstand the heavy cuts now possible with high-speed steel tools. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280189
EISBN: 978-1-62708-267-9
... for machining superalloys Table 10.3 Some high-speed tool steels for machining superalloys Type Composition, % Applications C W Mo Cr V Co M6 0.8 4 5 4 1.5 12 Heavy cuts, abrasion resistant M30 0.8 2 8 4 1.25 5 Heavy cuts, abrasion resistant M33 0.9 1.5 9.6 4...
Image
Published: 01 December 1984
Figure 1-29 Macroetching (10% aqueous HNO 3 ) of a disc cut from this carburized AISI P2 part revealed a heavy case at both the ID and OD. The surface was 65.5 HRC (Rockwell hardness on the C scale) while the center was at 85 to 86 HRB (Rockwell hardness on the B scale). More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480293
EISBN: 978-1-62708-318-8
... of rotating elements; true-running spindles; snug bearings, slides, and screws; sturdy frames; wide ranges of speed and feed; and ample power to maintain speed throughout cutting. Undersized and underpowered machines should be avoided. Certain locations of machines near or adjacent to heavy aisle traffic also...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120313
EISBN: 978-1-62708-269-3
.... Problems encountered from galling, smearing, and high temperatures generated at the cutting edge of the teeth have, however, largely been overcome. Heavier, more rugged machine designs (for example, the Marvel heavy-duty No. 6 or 9 machine), blades, and full recognition of the value of the proper...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270084
EISBN: 978-1-62708-301-0
... that the rim had exerted a very heavy force on this tie-rod before the nut had been sheared off. Fig. CH10.3 Fracture surface of the hub Testing Procedure and Results Metallography and Scanning Electron Fractography To check the quality of the hub material, metallographic examination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170573
EISBN: 978-1-62708-297-6
... and for cutting tools used in machining of cast iron and other abrasive or gummy materials. The 6% Co grade has moderate values for all properties and is a good general-purpose carbide material. The 25% Co grade has the greatest toughness and is used for applications involving heavy impact. Because of its...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
... Nomenclature, Definitions of Terms with Symbols.” Fig. 1 Schematic of typical gear tooth nomenclature Gear cutting table showing various tooth dimensions for different diametral pitches of spur gears Table 1 Gear cutting table showing various tooth dimensions for different diametral pitches...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420185
EISBN: 978-1-62708-452-9
... Information Field application: The axle shaft was used in a heavy-duty open-pit mining truck hauling overburden. The shaft had failed after operating for 27,000 hours. Previous failures had resulted from longitudinal shear, but this had not; the customer thought the material was defective. Visual...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390001
EISBN: 978-1-62708-459-8
... cuts could be taken. The steel tools then available limited the cutting speeds, and lubrication with some heavy oil or fat gave immediately observable improvements. Higher cutting speeds, made possible with the advent of high speed steels at the turn of the century, and the growth of grinding made...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900241
EISBN: 978-1-62708-350-8
... degrees of surface hardness. Cutting fluid residue can be a particularly severe source of surface contamination. Some cutting fluids contain sulfides and chlorides, leaving a surface deposit that is not always visible to the naked eye. Another source of contamination is gear cutting fluids and lapping...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610461
EISBN: 978-1-62708-303-4
... can be characterized by a single key word: cutting . Abrasive wear occurs when hard particles suspended in a fluid or projections from one surface roll or slide under pressure against another surface, as shown in Fig. 1 , thereby cutting the other surface. Indeed, machining would fall...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630169
EISBN: 978-1-62708-270-9
... are primarily the result of “undesired removal of material from contacting surfaces by mechanical action,” which is the definition of wear, they are included here with other wear phenomena. Abrasive Wear The general category of abrasive wear can be characterized by a single key word: cutting . Abrasive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200115
EISBN: 978-1-62708-354-6
... an inherently sound casting. Generally though, the design will need to be altered to promote directional solidification ( Figure 7-1 ). Shrinkage will usually be present at isolated hot spots, or areas where progressive freezing does not occur. For example, if a heavy section is isolated from the riser...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900007
EISBN: 978-1-62708-358-4
...–8 1–3 1–6 Heavy cuts, fast speeds 7–9 1–3 8–9 Shears Wear resistance and toughness Safety in hardening and slight distortion in hardening Thin stock, short runs 4–6 1–7 (b) Thin stock, long runs 6–9 1–7 (b) Heavy stock, short runs 2–4 7–9 (b) Heavy stock, long...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
..., the next important step is usually cutting a metallographic specimen (or specimens) from the material that has been submitted. In most cases, the submitted material will be too large for a metallographic investigation, and appropriately sized specimens must be removed. The key is to think before you cut...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120079
EISBN: 978-1-62708-269-3
... are not detrimental to titanium alloys. Usually the heavy chlorine-bearing fluids excel in operations such as drilling, tapping, and broaching. The use of chlorine-containing (or halogen-containing) cutting fluids generally is not a recommended practice, however. There are excellent cutting fluids available...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
...), medium- or heavy-duty cutting oils are generally used. Horizontal broaching of steel usually requires a heavier bodied or more chemically active oil than vertical surface broaching under comparable conditions. The heavier oil clings to the horizontal broach better than a water-miscible fluid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230339
EISBN: 978-1-62708-298-3
.... Accordingly, heavy stock removal is usually performed dry. Advantages of wet cutting are improved cutting action and a reduction of airborne beryllium dust. Health hazards may also dictate the use of wet machining/cutting. In some operations, wet cutting must be used due to the difficulty in collecting dry...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250073
EISBN: 978-1-62708-287-7
..., but the thin carburized layer did not lend itself to extensive hot forming or strong, heavy tools. To overcome this difficulty, the early steelmaker would forge carburized bars, cut them into short lengths, stack them, reheat, and forge again. The product of this process was called shear steel...