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End notching works the end of the tube, such as a semicircular concavity to make the base of a tee, or a convex vee to fit into a mitre. Vee-notched tube, bent for assembly of a mitred joint Side notching (also called offset notching ) works the side of a tube with a vee notch for bending, semicircular or vee notches for tee joint.
A die cuts an external thread on cylindrical material, such as a rod, which creates a male threaded piece that functions like a bolt. Dies are generally made in two styles: solid and adjustable. An adjustable die may be adjusted either by an integrated screw or by a set of screws set in to the die holder (termed a "die stock").
Die set (plates). [5] Placement can be inverted depending on the operation, such as use of a knock-out: [6] Die block – the lower (bottom) half of the die set. Machined to conform to the desired shape of the workpiece being formed or cut. Punch plate – the upper (top) half of the die set. Holds and supports the different punches in place.
A typical compound fine blanking press includes a hardened die punch (male), the hardened blanking die (female), and a guide plate of similar shape/size to the blanking die. The guide plate is the first applied to the material, impinging the material with a sharp protrusion or stinger around the perimeter of the die opening. Next, a counter ...
ISO 3002-2:1982 Part 2: Geometry of the active part of cutting tools – General conversion formulae to relate tool and working angles; ISO 3002-3:1984 Part 3: Geometric and kinematic quantities in cutting; ISO 3002-4:1984 Part 4: Forces, energy, power; ISO 3002-5:1989 Part 5: Basic terminology for grinding processes using grinding wheels
[2] A keyhole notch is typically considered as a slit ending in a hole of a given radius. This type of notch is most often considered in numerical models. [3] Fracture toughness results obtained from keyhole notch testing are often higher than those obtained from V-notched or pre-cracked specimens.