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Manufacturing Processes Final OSU
Terms in this set (30)
Characterized by high strength, good dimensional accuracy, good surface finish and low cost.
Performed at room temperature
Where most sheet metal operations are performed
Also known as Stamping Press
sheet metal products
sheet metal cutting operation along a straight line between two cutting edges.
Used to cut large sheets into smaller sections for subsequent press working operations
Cutting of the sheet metal along a closed outline in a single step to separate the piece from the surrounding stock
similar to blanking except that it produces a hole, and the separated piece is scrap
cutting a sheet metal strip by a punch with two cutting edges that match the opposite sides of the blank
the simultaneous punching of a pattern of holes in sheet metal
punching operation that cuts an elongated or rectangular hole
Involves cutting out a portion of metal from the side of the sheet or strip.
shearing operation performed with very small clearance to obtain accurate dimensions and cut edges that are small and straight
Types of stamping dies
Compound die- two operations at station
Combination die- two operations at two stations
Progressive die- two or more operations at
forming operation used to create indentations in the sheet. has matching indentations on two die halves
bulk deformation operation, has two different cavities in the die halves
blanking and punching
Cutting of sheet metal along a closed outline and is similar to punching that adds a hole to the cut
The distance between such and die. Range between 4% and 8% of the sheet metal thickness
Concave or Double Concave
Cutting Force Formula
Recommended Vee-Die Opening
Mild Steel up to 1/2 thick - 8 times the metal thickness
Mild Steel larger than 1/2 thick - 10 times the metal thickness
Fusion-Welding Process in which coalescence of the metals is achieved by the heat of an electric arc.
Uses a consumable electrode consisting of a filler metal rod coated with chemicals that provide flux and shielding
Consumable Electrode and uses an inert shielding gas such as Argon and helium, carbon dioxide
Flux-cored arc welding
A method of arc welding using a tubular steel electrode containing a core of vaporizing flux that forms a gaseous shield around the weld area.
An arc welding process, which combines features of gas and shielded welding with those of electro-slag welding.
Submerged Arc Welding
A method of arc welding in which the weld area is shielded by a blanket of fusible, granular metal that melts to form a layer of protective slag. The filler metal may be supplied by a consumable electrode or by a separate welding rod.
Gas Tungsten Arc Welding
nonconsumable electrode arc welding process in which a tungsten electrode is used, the filler metal is supplied from a filler wire, and flux is not used; it is especially suitable for thin metals and for welding aluminum, magnesium, titanium, and refractory metals
Plasma Arc Welding
A constricted plasma arc is directed at the weld area. Special form of of gas tungsten arc welding
A group of fusion welding processes that use a combination of heat and pressure to accomplish coalescence
Resistance Spot Welding
resistance welding process in which the tops of two opposing solid, cylindrical electrodes touch a lap joint of two sheet metals, and resistance heating produces a spot weld; it is the simplest and most commonly used resistance welding process; it is widely used for fabricating sheet metal parts such as automobile bodies which have up to 10,000 such welds
Resistance Seam Welding
is a modification of resistance spot welding wherein the electrodes are replaced by rotating wheels or rollers. Used to weld automotive gas tanks.
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