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trimming dies

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Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005118
EISBN: 978-1-62708-186-3
... of trimming dies such as conventional trimming dies and cam trimming dies. It provides information on rough and finish trimming and construction details of trimming dies. The article reviews the selection criteria of presses for a trimming operation. It provides a discussion on the scrap and material handling...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003979
EISBN: 978-1-62708-185-6
... closed-die forging close-tolerance forgings conventional forgings friction hammers heating equipment lubrication presses shape complexity trimming CLOSED-DIE FORGING, or impression-die forging, is the shaping of hot metal completely within the walls or cavities of two dies that come...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003992
EISBN: 978-1-62708-185-6
... damage. This article discusses the forging methods, primary mill practices (primary forging and ingot breakdown), trimming, and cleaning operations of stainless steels. It describes the use of forging equipment, dies, and die material in the forging operation. The article provides an overview...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004036
EISBN: 978-1-62708-185-6
.... The distribution of flash in upper and lower dies is the result of the close-to-vertical draft in each of the dies containing the impression for flash. With flash located as shown, it can be trimmed with minimum interference with the sectional profile of the forging. Use of Corrugated Land When...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005121
EISBN: 978-1-62708-186-3
... for automobiles are blanked and partly drawn in a compound die and then finish formed, pierced, and trimmed by the transfer method. Dies for producing a given part usually cost more for the transfer-die method than for a separate-die operation but approximately the same as for a progressive-die operation...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003997
EISBN: 978-1-62708-185-6
... of dies, and reheating is rarely required. In press forging, particularly in high-production applications, blocking is often done separately, followed by trimming before the forging is completed. The operations are likely to be performed in different presses; therefore, the partially completed forging...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003184
EISBN: 978-1-62708-199-3
... disadvantage of glass is that it will accumulate in deep cavities, solidify, and impair metal flow. Therefore, the use of glass is generally confined to shallow forgings that require maximum lateral flow. Trimming When production quantities justify the cost of tools, forgings are trimmed in dies. Hot...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006493
EISBN: 978-1-62708-207-5
... shapes, depending on the complexity of the part, the tooling system being used, and cost considerations. Precision aluminum forgings are usually produced with multiple operations in finish dies; trimming, etching, and repair are conducted between operations. Precision aluminum forgings are typically...
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
... design, and die manufacture. The article discusses the critical aspects of various manufacturing elements of aluminum alloy forging, including the preparation of the forging stock, preheating stock, die heating, lubrication, trimming, forming and repair, cleaning, heat treatment, and inspection...
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
... precision forging punching safety precautions thermal fatigue trimming dies vertical press wear resistance DIE MATERIALS used for hot forging include hot-work tool steels (AISI H series), some alloy steels such as the AISI 4300 or 4100 series, and a small number of proprietary, lower-alloy...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005129
EISBN: 978-1-62708-186-3
.... Trim Dies Trimming of stampings with major differences in metal thickness or strength can cause press imbalance and excessive shock loads as the press energy is released when metal breakage occurs. Increasing the shear on the upper trim steel to four times the metal thickness per linear foot...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001041
EISBN: 978-1-62708-161-0
...  Dies and inserts  Forging machine plungers and piercers For combining hot hardness with high abrasion resistance: M2, T1 Dies for presses and hammers: H20, H21 For severe conditions over extended service periods: H22–H26 Hot trimming dies: D2 Hot-trimming dies Blacksmith tools Hot-swaging dies...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005117
EISBN: 978-1-62708-186-3
... in material and operating costs than any other type of blank used in stamping operations. There is no scrap resulting from trimming, and the need for expensive trim dies is avoided, where developed blanks can be used. Developed blanks cannot be used for drawn parts because of the requirement for extra metal...
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
... and worktable is controlled by numerical-controlled programming. In forging, WEDM is mainly used for manufacturing trimming dies. Advances in EDM Since the 1990s, increased control of the EDM process has provided a higher level of machining precision, along with decreased damage to the workpiece...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005528
EISBN: 978-1-62708-197-9
..., are produced during aluminum trimming operations using dies that are conventionally designed for steel sheets. High production volume causes slivers generated in each stroke to spread all over the trimming dies. The slivers are subsequently carried into downstream processes and may cause damage to the surface...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... it to the next station. Some of the progressive cold-heading machines have special die stations for performing finishing operations such as trimming, pointing, thread rolling, and knurling. Cold-heading machines vary in terms of the number of dies/stations, forging load, blank or wire size, blank cut-off length...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005108
EISBN: 978-1-62708-186-3
..., or coil stock. Trimming is defined as the cutting off of excess material from the periphery of a workpiece. It is usually done in dies and is similar to blanking. It is often the final operation on a formed or drawn part. The quality of blanked edges also can be improved by shaving, as discussed later...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005307
EISBN: 978-1-62708-187-0
... considerations include the usage of furnaces and launder system, scrap return, inclusions in zinc alloys, fluxing of zinc alloys, and galvanizing fluxes. The article discusses the materials and lubricant selection, casting and die temperature control, and trimming process used in hot chamber die casting for zinc...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... draft, and can be produced at a lower cost. The lower cost is due to shorter cycle times and reduced degate and finishing costs. Degating is the removal of gates, runners, and risers (feeders). Die casters use trim dies and presses to accomplish this. In permanent mold casting, trim dies and presses...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... with the entire cavity within the gripper dies. Preventing Laps and Cold Shuts Laps and cold shuts are forging defects that occur as a result of poor metal flow that allows the metal to flow over onto itself. They may also occur when flash or trim burrs are folded over in the course of subsequent forming...