Mold design term

The upper pole upper pole is the upper end of the press slider up and down movement.

The lower pole of the lower pole is the lower end of the press slider moving up and down.

The burr burr is a sharp bulge on the edge of the stamped blank.

The burr surface burr surface is a flat surface with burrs on the edge. For blanking, the burr surface is the plane that contacts the punch; for punching, the burr surface is the plane that contacts the die.

The rough hair surface is a rough section where the blank is torn.

Neutral layer Neutral layer refers to a layer of material with zero strain in a curved punch.

The lug ear is an ear-shaped projection on the edge of the upper part of the drawing piece.

Neutral layer coefficient The neutral layer coefficient is a system used to determine the position of the neutral layer.

Double-sided gap The double-sided gap is the sum of the gaps from one side to the opposite side or the gaps on both sides (refer to "Gap".

Delivery device The delivery device is a device that ejects a punched work piece out of the mold.

Positive springback is the rebound of an increased radius of curvature of a formed punch after it is removed from the die, or the springback of a material entity after the punch has escaped from the die. See "Return order."

The punched parts are collectively referred to as billets after one or more stamping processes, that is, collectively referred to as process parts and workpieces.

Glossy smooth surface is the bright section where blanks are cut out.

There are two types of rebound springback, one is the difference between the size of the forming punch and the corresponding size of the die. For curved parts, it is generally expressed as the difference in angle or difference in radius. The other is the difference between the outer dimension of the stamped part escaping from the die and the corresponding dimension of the die or the difference between the inner dimension and the corresponding dimension of the punch.

Closed Height Closed Closed height is the distance between the upper mold base plane or the lower mold base plane when the die is at the lower pole of the working position.

Travel stroke is the distance between the ends of the up and down motion of the press slider. It is customary to refer to the up and down motion of the press slider as stroke, such as "stroke down", "stroke up", "number of strokes per minute", and the like.

Negative springback springback is the rebound of the reduced radius of curvature after the forming punch is removed from the die, or the rebound of the blank after the blank has escaped from the die. See "Rebound."

Clamp Feeder The clamp feeder is a device that feeds raw material into the die using clamping, loosening and reciprocating action of a mechanical, pneumatic or hydraulic press.

Lifetime service life refers to the number of times that a die can punch each time it is punched, or how many times it can punch before the die is scrapped. The former is called sharpening life and the latter is called total life.

The step distance is the distance each time the raw material can be used for multiple stamping.

The clearance gap is the difference between the corresponding dimensions of the male and female dies, or the gap between them.

One-sided gap One-sided gap is the gap from the center to one side or the gap on one side. See "Gap."

Billet blanks are unpressed and are mostly used only for primary stamping materials. Blanks are sometimes referred to as blanks or wool.

Roll stock is a roll stock that can be used for multiple punches.

Sheet material is a plate material that can be used for multiple stamping.

The strip material is a strip material that can be used for multiple stampings.

Pull marks are the friction marks between the surface of the material and the working surface of the mold during the forming process.

Depth to draw ratio is the reciprocal of draw coefficient. See "Drawing factor."

The drawing coefficient drawing ratio is the ratio of the diameter of the cylindrical drawing part to the diameter of the preceding drawing. For the first draw, the draw ratio is the ratio of the drawing piece diameter to the unwinding diameter. The lug ear is an ear-shaped projection on the edge of the upper part of the drawing piece.

The feed material feeds the raw material into a mold for stamping.

Feeder Feeders Feeders feed the raw materials into the mold. Common feeding devices are roller type, clamp type, hook type, etc. See related terms.

The hopper hopper is a bucket-shaped container with a mechanism for automatically orienting the forming punch.

Bend Radius The bend radius is the inner radius of the punch.

The unfolded drawing is a flat work piece graphic corresponding to the forming punch.

Expanded Dimensions Expanded Dimensions are flat process piece sizes that correspond to the size of the forming punch.

Arching and arching is the name of the phenomenon of arching unevenness on the surface of the stamping.

Wrinkling and wrinkling is the name given to the phenomenon of undulating wrinkles in the flange of the drawing part.

The chute is a trough-shaped channel that causes the punches to enter or leave the mold sequentially.

Hook feed device The hook feed device is a device that uses a reciprocating hook to extend into the hole to drive the raw material into the die.

The management component is the stacking of punching parts (most of which are blanking parts).

The plumbing device is the device that stacks the punches.

The layout of the layout is the die design process for completing the layout diagram. Sometimes also referred to as nesting plans layout. See "Layout Diagram." Row layout diagram is a process of describing the gradual formation of stampings on strips (belts, rolls), the final position occupied and the layout of the relationship between adjacent stampings.

The die-bonding die is the name of the phenomenon where the die work surface adheres to the punch material.

The chipping edge of the chipping is the name of the phenomenon that the punch or die edge spalled off.

Minimum bend radius The minimum bend radius is the minimum bend radius that can be successfully bent. See "Bending Radius."

Overlap is the minimum distance between adjacent punch contours in the layout drawing, or the minimum distance between the punch contour and the edge of the strip.

The collapse angle has two meanings. One is the phenomenon that the outer edge of the blank is close to the concave die surface or the inner edge is near the convex die surface, and the other is the height hg of the corner part of the blank. .

The collapsed angle surface is the plane of the blanking part with the edge of the corner collapsed, that is, the opposite side of the burr surface. See "burrface".

Trial test mold refers to the experimental stamping after the mold assembly is completed to assess the performance of the mold and the quality of the stamped parts.

Roller Feeder The Roller Feeder is a device that uses a pair of rollers to clamp raw material into the die. The material is fed through the periodic rotation of the roller