Mold with specific outline or inner cavity shape, application has the edge contour shape can make according to the outline shape separation occurs, the blanking.
Application within the cavity shape can make to get the corresponding three-dimensional shape.
Mould generally divided into two parts: dynamic model and fixed mode, or punch and die.
They can be divided into can close.
Separated into blank or remove parts, closed when the separated parts and block or take shape.
In blanking, stamping forming, die forging, cold heading, pressing and molding process, separation or by mold forming the external forces applied on the blank.
Die in the process of extrusion, die-casting and plastic injection, external force by the pressure, plunger, punch, etc., applied on the blank.
Mould is under billet bulging force.
Mould besides itself, also need to die, die frame, guide and ejection device and other parts, these parts are generally made universal, suitable for a range of different mould.
High precision, precise size, some of the blanking die punch and die clearance to 0;
Fast stamping and punching dozens to thousands of times per minute;
Die life is long, some of the silicon steel sheet blanking die life over millions of times.
Billet in the process of stamping mould, in turn, be continuous stamping through transfer, to the last station become parts, this mould is called progressive die, also known as the continuous mode.
Existing station 20, 30, location of progressive die, from the volume of material uncoiling, leveling, stamping, until will discharge and piled up parts, has fully realize automation, productivity increased significantly.
Is the stator, rotor 6 location of silicon steel sheet blanking progressive die.
1 rush is guide pin hole, shaft hole, each two keyway, 2 location at rotor shaft hole, 22 rotor slot, station 3 24 stator slot and 4 station rotor blanking, station space, 5 6 location stator blanking, waste, cutting off.
Mould has multiple forms complex cavity, working conditions, more than 1000 ℃ the blazing red steel in the mold cavity deformation and flow scouring, die forging hammer are the high-speed impact or heavy load pressure, in use process in a nasty cold, heat and cold and hot alternative state.
Mold material should have high strength, toughness and wear resistance, the temperature of the hot forging must also have high strength and hardness, and after a strong heat treatment.
The application of the mold is very extensive.
Mass production of mechanical and electronic products, such as cars, bicycles, sewing machines, cameras, electrical, electronics, instruments, etc., as well as the manufacture of household utensils are used a lot of mold.
Mold is basically a single production, its shape is complex, the structure strength, stiffness, surface hardness, surface roughness and machining accuracy have very high requirements, so the mold production needs to have a high technical level.
Mould timely supply and its quality directly influences the quality of the product, cost, and new product development.
Mold production development level is one of the important symbol of the levels of mechanical manufacturing.