1. Stamping die
stamping dies, in the cold pressing process, the material (metal or nonmetal) machining into parts (or semi-finished) a special process equipment, called cold stamping die (commonly known as Die). Punching, at ambient temperature, using a die mounted in the press pressure is applied to the material, to produce separation or plastic deformation to obtain a pressure processing method of the desired part.
is a stamping die stamping essential technology and equipment, technology-intensive products. Quality, productivity and production costs of stamping, directly related to mold design and manufacturing. Mold design and manufacture of high and low technology level, is a measure of an important indicator of a country’s level of product manufacturing level, to a large extent determine the quality, efficiency and new product development capability.
Category
in the form of many stamping die, the die also by the nature of three aspects, mold configuration, the mold material classification.
The process according to the nature of the classification
A. Blanking die in the closed or open contour of the material to produce separate molds. The blanking die, die punching, die cutting, incision mode, trimming die, die cut and the like.
b. The bending die so that the blank sheet metal blank or other bending deformation along a straight line (bending line) so as to obtain the mold of the workpiece at an angle and shape.
c. Drawing die blank made of sheet metal is the opening of the hollow member, or the hollow member further change the shape and size of the mold.
d. Blank or mold is a semi-worked piece according to FIG convex shape of the molding die direct replication, and the material itself generates only a local plastic deformation of the mold. The bulging die, die necking, flaring die, molding die undulating flanging die, plastic molds.
e. Borrowed riveting mold parts involved in an external force in a certain order andOverlapping or connected together, thereby forming an integral
The combination of a classification step
a. In a single stroke press molding step, only the complete a die stamping process.
b. A composite molding station only, in one stroke of the press, at the same station at the same time to complete the die stamping step or two or more two.
c. Progressive die (also called a continuous mode) in the blank feeding direction, having two or more stations, in one stroke of the press, successively at different stations die stamping step is completed two or more two.
d. Transfer molding a combination of mold and die features a single step, the delivery system using a robot, quick transmitting the molded product, can greatly improve the production efficiency, reduce production costs, thrift material costs, and the quality is stable and reliable.
The method of processing according to the classification of the product
Depending on the product processing method, the mold can be divided into a punching die, the bending mold, die, drawn, and the compression molding die five categories mold.
a punching die: shear work done is commonly used form of die cut, die cutting, punching die, trimming die, the whole edge of the die, and die punching broaching mold.
b bending mold: the flat blank is bent into an angle shape, depending on the shape of the parts, the accuracy and the amount of production, it is the mold in many different forms, such as ordinary bend die, cam bend die, die curling, arcuate bend die, bend and twist caulking punch die and the like. .
c, drawn mold: the mold is a plane, drawn blank made of a bottomed seamless container.
d mold: refers to local deformation various methods to change the shape of the blank, which form the convex sheet forming die, neck-forming die necking forming die, the hole of the flange forming die, bead forming die.
e compression mold: the use of strong pressure, flow deformation of the metal blank, into a desired shape, which species are extrusion dies, embossing dies, embossing dies, a die pressure side.
The term stamping die Basics
1, bead
is the step of crimping the edge member wound into a stamping process nearly closed circular. Circular bead rectilinear axis.
2, roll edge
is hollow neck-catchy edge member into a volume behind closed circular stamping process.
3, drawing
The drawing is a straight or wool-shaped step surface member becomes a stamping process, rely mainly on the curved bottom portion extending convex mold material.
4, bending
Tension is achieved under the action of bending moment and tension, so that the whole cross-section of the entire bent by the tensile stress of a stamping process.
5, bulging
Bulging or hollow body is radially outwardly expandable tubular member of a stamping process. Cut forming step is cut into pieces of a few of a stamping process.
6, leveling
The leveling of a stamping process is improved partial or total parts planar flatness. Shaped undulations
7, shaped undulating
extending undulating molded material is to rely on a step is formed so that a partial concave or convex stamping process. Changing material thickness fluctuation in forming non-intentionally, i.e. a small thickness change is a modification of the natural process of formation, the design is not specified requirements.
8, curved
is bent by the pressure of the material is plastically deformed so as to be bent with a certain curvature of a stamping process to form a certain angle.
9, cutting chisel
chisel cut using the cutting die cutting sharp edges performed blanking or punching process. No chisel cut lower mold material just below the pad plate, the vast majority of non-metallic materials are washed.
10, deep hole punched
Deep Hole punching is punched pore diameter equal to or less when the step of punching the material thickness.
11, blanking
is a blanking separating material along a closed contour of a stamping process, the separated material into the workpiece or the process member, most planar.
12, necking
Necking is a tubular member or a hollow member open at the pressing of a stamping process so reduced.
13, the orthopedic
is to rely on shaping the material flow, a small amount of the shape and size changing step, a stamping process to ensure part accuracy.
14, refurbishment
refurbishment is cut along the outer shape or the amount of material shaped profile, a stamping process to improve the edge finish and verticality. Refurbishment step generally also improve the dimensional accuracy.
15, flanging
is turned around the inner bore hole in the material is translated into a stamping process Celi flange.
16, the flange
cuffs along the profile curve of the material around its side translated a short side of a stamping process.
17, drawing
The drawing is a straight or wool step becomes hollow body member, or the hollow member of a stamping step further change shape and size. Drawing temporal core member mainly depend on a material other than the bottom of the punch die is formed flows.
18, transfer drawing
is on a continuous drawing strip (coil material), with the same sub-molds (continuous drawing die) deep and gradually pull the desired shape by a plurality of and a press method size.
19, ironing
the hollow ironing step is further changed in shape and size of the member, the side walls intentionally thinned a drawing step.
20, anti-drawing
Anti-drawing step is the hollow member inner wall of an everted drawing step.
21, the temperature difference between the drawing
Drawing temperature difference is the use of heating and cooling means, the temperature of the deformable portion of the material to be much higher than the temperature of the portion of the material has been deformed, thereby improving the degree of deformation a drawing step.
22, hydraulic deep drawing
is the use of deep drawing hydraulic fluid within a rigid or flexible container filled, instead of the punch or the die member to form a hollow drawing step.
23, one kind beading
undulating shaped beading. When the local undulations occurring in the form of ribs, corresponding undulations forming step is called beading.