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multiple-spindle machines

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003983
EISBN: 978-1-62708-185-6
...-spindle, creeping-spindle, alternate-blow, and die-closing types. All these machines are equipped with dies that open and close rapidly to provide the impact action that shapes the workpiece. The five principal machine concepts for swaging are shown in Fig. 4 . Fig. 4 Principal machine concepts for...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003187
EISBN: 978-1-62708-199-3
... suitable dynamometer. For general approximations, the power requirements in turning and milling can be obtained by measuring the horsepower input to the drive motor on the machine tool. The power required at the spindle can be more accurately determined by calibrating the horsepower output versus...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... fully automated. Recent advancements in CNC grinding machines have extended the capability of conventional grinders by allowing for grinding of multiple surfaces in a single setup, using more than one wheel at a time as well as grinding multiple surfaces simultaneously. Fig. 5 Grinding processes...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004041
EISBN: 978-1-62708-185-6
... Abstract This article reviews the methods of machining and finishing forging dies. It illustrates different stages in die manufacturing. The article provides a brief description on requirements and characteristics of high-speed machining tools, including feed rates, spindle speed, surface...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005355
EISBN: 978-1-62708-187-0
... alloys. Figure 8(c) shows what happens in the cut when the machine is equipped with force control. The correct cutting force is constantly applied against the part, and the spindle actually moves back and forth as the arc of contact changes along the circumference of the wheel. Because the system is...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003973
EISBN: 978-1-62708-185-6
... computer-controlled hammers. It describes the three basic designs of high-energy-rate forging (HERF) machines: the ram and inner frame, two-ram, and controlled energy flow. The article reviews forging mechanical presses, hydraulic presses, drive presses, screw presses, and multiple-ram presses...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003055
EISBN: 978-1-62708-200-6
... force required to grind a metal. In order for the grinding wheel to produce the required straightness, flatness, or similar surface requirements, there must be a machine tool assembly of greater resistance to deflection. This higher stiffness is required in the machine tool structure and spindle/wheel...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
...-type, and multiple-ram). It further discusses the technologies used in the design of dies, terminology, and materials selection for dies for the most common hot-forging processes, particularly those using vertical presses, hammers, and horizontal forging machines. A brief section is included on...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004012
EISBN: 978-1-62708-185-6
... life and optimum machine performance, but some high-tensile fasteners and other high-quality threads require the use of lubricating oil to provide the quality of finish required. Many three-die machines use the same oil on the work and dies as is used for lubrication of the rolling spindles...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... nonferrous metals. The article reviews the various types of forming processes such as blanking, piercing, fine-edge blanking, press bending, press forming, forming by multiple-slide machines, deep drawing, stretch forming, spinning, rubber-pad forming, three-roll forming, contour roll forming, drop hammer...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003978
EISBN: 978-1-62708-185-6
... forgings are machined into gears, pulleys, and similar components of machinery. Spindle, pinion gear, and rotor forgings ( Examples 3 and 4 ). These forgings are for shaftlike parts and have their major or functional diameters either in the center or at one end, with one or more smaller diameters...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003975
EISBN: 978-1-62708-185-6
... conditions, including: Costs for forging without multiple-part dies are prohibitively high because machine time is long and the proportion of metal lost to flash, sprues, and tonghold is high. Production requirements are large. Parting face of the die is uneven, and a balance of forces is needed...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003039
EISBN: 978-1-62708-200-6
... mandrel advances the band delivery one full band width. The winding machine is much like a lathe in that the spindle speed is much more rapid than the carriage travel. Hoop windings are generally combined with longitudinal windings (helical or polar) to produce a balanced-stress structure. Hoop patterns...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
... machine tool spindles and other high-speed or high-precision equipment. Other applications include turbomolecular pumps, dental drills, and specialty instruments. Stresses in these bearings are often very high and are localized at or near the surface. The normal contact stress at the surface can be as...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001234
EISBN: 978-1-62708-170-2
... Fig. 5 Two-spindle mass finishing machine Fig. 7 Action of turret and drums within a centrifugal barrel finishing machine Fig. 6 Centrifugal disc machine Abstract Mass finishing normally involves loading components to be finished into a container together with abrasive...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004008
EISBN: 978-1-62708-185-6
... cold drawing of rod and wire, as well as small-diameter tubing, are generally designed so that the products can be uncoiled and then recoiled after drawing. On multiple-die continuous machines, uncoiling, drawing, and recoiling are repeated at successive stations. Rod coils, when ready for processing...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005343
EISBN: 978-1-62708-187-0
... circumferential crack over 20 cm (8 in.) long was present at the bottom surface of the spindle adjacent to a wheel bearing. Crack initiation occurred near the machined surface where the fracture exhibited a rough texture, as shown in Fig. 11 . Beach marks extended outward from the origin area, indicating that a...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000606
EISBN: 978-1-62708-181-8
... fracture, brittle fracture, and in-service rotary bending fatigue fracture of fractured roof-truss angles, pressure-vessel shells, automotive axle shafts, broken keyed spindles, crane gears, blooming-mill spindles, automotive bolts, and crane wheels of these steels. axle shafts brittle fracture...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003996
EISBN: 978-1-62708-185-6
... machining; multiple cold spin forming steps on preforms to precise, finished dimensions requiring little or no final machining; and/or combined hot spin forging of a preform shape followed by cold spin forming after solution heat treatment and quench and prior to age for precise shape, out-of-round and...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005243
EISBN: 978-1-62708-187-0
... plates Multiple impressions machined from a solid blank of material with the operations and dimensions controlled by direct transfer of computer-aided design and manufacture (CAD-CAM) data In general, increased accuracy will follow through each of the aforementioned stages of pattern equipment...