Basic knowledge of stamping die
Punching blanking is a stamping process, which uses a stamping die to separate some materials or working parts from other materials, working parts or wastes. Blanking is the general name of separation processes such as cutting, blanking, punching, punching, slotting, cutting, chiseling, trimming, tongue cutting, cutting and repairing.
Incision is a stamping process, which partially separates the material along the outline of the opening, but not completely. The material to be cut and separated is in or substantially in a plane before separation.
Trimming trimming is a stamping process that uses stamping die to trim the edge of workpiece to make it have a certain diameter, height or shape.
Tongue cutting and tongue cutting is a stamping process, which partially but not completely separates the material along the outline of the opening. The partially separated material has a certain position required by the workpiece and is no longer on the plane before separation.
Cutting is a stamping process, which separates materials along an open contour, and the separated materials become workpieces or working parts.
Flaring flaring is a stamping process, which enlarges the opening of hollow parts or tubular parts outward.
Punching is a stamping process, which separates the waste from the material or workpiece along a closed contour to obtain the required holes in the material or workpiece.
Punching is a stamping process that separates the waste from the material or workpiece along the opening contour, and the opening contour forms a gap, the depth of which does not exceed the width.
Punching Punching is a stamping process that separates the waste from the material or workpiece along the opening contour. The opening contour is groove-shaped, and the depth exceeds the width.
Punching the center hole punching the center hole is a stamping process that forms a shallow concave center hole on the surface of the workpiece, and the backing material has no corresponding protrusion.
Fine blanking is a kind of smooth blanking, which uses a fine die with a toothed blanking plate to make the whole section of stamping parts completely or basically smooth.
Continuous die The continuous die is a die with two or more stations. The materials are fed into one station one by one with the stroke of the press, so that the stamping parts are gradually formed.
Single-process stamping die Single-process stamping die refers to the stamping die that only completes one process in one stroke of the press.
Combined punching die The combined punching die is a set of universal adjustable punching dies that gradually form various stamping parts according to geometric features (straight line, angle, arc and hole). Generally, the outline of plane stamping parts needs several pairs of combined dies to be punched several times.
Embossing is a stamping process, which uses a punch to squeeze one side of a workpiece, forcing the material to flow into the opposite pit to form a bulge.
Embossing is a stamping process in which materials are forced to be partially extruded to form shallow concave patterns, patterns, characters or symbols on the surface of the workpiece. The back of the embossed surface has no protrusions corresponding to the dents.
Forming is the general name of stamping process, which changes the shape and size of workpiece through material flow rather than material separation.
Smooth blanking Smooth blanking is a blanking process that directly obtains all or almost all smooth full sections without renovation. Torsional bending is a stamping process in which one part of a flat or partially flat workpiece is twisted at an angle with respect to another part.
Edge wrapping is a stamping process that rolls the edge of the workpiece into a nearly closed circle. The axis of a curled circle is linear.
Flanging is a stamping process that rolls the upper edge of a hollow part into a closed circle.
Drawing is a stamping process to change a flat blank or workpiece into a curved surface, which is mainly formed by the extension of the material at the bottom of the punch.
Stretch bending stretch bending is a stamping process that realizes bending deformation under the action of tension and bending moment, and makes the whole bending section subject to tensile stress.
Bulging is a stamping process that expands hollow parts or tubular parts radially outward.
Cutting is a stamping process, which divides the forming process into several parts.
Leveling is a stamping process to improve the flatness of local or whole plane parts.
Wave forming Wave forming is a stamping process that relies on the extension of materials to make the workpiece form local depressions or protrusions. The change of material thickness in undulating forming is unintentional, that is, the slight change of thickness naturally occurs during deformation, which is not the requirement of design.
Bending and bending is a stamping process in which materials are plastically deformed by pressure, and then bent into a shape with a certain curvature and a certain angle.
Chiseling Chiseling is a process of punching or punching with a sharp chiseling die. There is no lower die for chiseling, only a flat plate is placed under the material, and most of the punched materials are non-metal.
Deep-hole stamping Deep-hole stamping is a stamping process in which the aperture is equal to or less than the thickness of the stamped material.
Blanking is a stamping process, which separates materials along a closed contour. The separated materials become workpieces or working parts, most of which are planar.
Necking is a stamping process, which compresses the opening of hollow parts or tubular parts to make them shrink.
Plastic forming is a stamping process, which depends on the flow of materials to change the shape and size of the workpiece little by little to ensure the accuracy of the workpiece.
Renovation is a stamping process that cuts a small amount of material along the outline or internal shape, thus improving the smoothness and verticality of the edge. Generally speaking, the finishing process can also improve the dimensional accuracy.
Hole turning is a stamping process, which processes materials into lateral flanges along the periphery of inner holes.
Flanging flanging is a stamping process that turns materials into short sides along contour curves.
Deep drawing is a stamping process that turns a flat blank or workpiece into a hollow part or further changes the shape and size of the hollow part. In deep drawing, the center piece is mainly formed by the material outside the bottom of the punch flowing into the die.
Continuous drawing Continuous drawing is a stamping method which uses the same pair of dies (continuous drawing dies) to gradually form the required shape and size on the strip (coil) through repeated drawing.
Thinning drawing Thinning drawing is a drawing process that further changes the shape and size of hollow parts and intentionally thins the side wall.
Anti-stretching Anti-stretching is a stretching process that turns the inner wall of a hollow workpiece outward.
Differential temperature stretching Differential temperature stretching is a stretching process that uses heating and cooling means to make the temperature of the material to be deformed much higher than that of the deformed material, thus improving the degree of deformation.
Hydraulic deep drawing Hydraulic deep drawing is a deep drawing process that uses liquid in rigid or flexible container instead of punch or die to form hollow parts.
Pressing rib is a wave-shaped forming. When local undulations appear in the form of ribs, the corresponding undulating forming process is called rib compression.