The basic components of a stamping die in layman's terms!

1, in the planning of the material belt before, must understand the parts of the public service requirements, material performance, punch press tonnage, punch press table, SPM (punches per minute), feeding direction, feeding height, die thickness requirements, material utilization, mold life.

2, in the planning of the material belt, together with CAE analysis, the primary consideration of the thinning rate of the material, generally less than 25%. Special deep drawing stainless steel material, can be in the pre-stretching and then annealed, with high-frequency annealing machine, the thinning rate can be accepted up to 40%, in the gauge is very important, in the mold length of the answer to the planning of the material belt, we must communicate with the customer, it is best to ask the customer to supply the previous mold photos or structural drawings to refer to the empty step should also be the case, the appropriate set aside the empty step on the mold after the mold to change the mold to assist is very big.

3, the material belt planning is the analysis of the product molding process, basically determines the success of the mold.

4, in the successive mold planning, lifting the material planning is very important, if the rising bar can not raise the whole material belt, can not be automated successive production.

5, in the mold planning, the selection of mold materials and heat treatment and appearance of the treatment (such as TD, TICN, TD time needs 3-4 days), especially stretching parts, if there is no TD, the mold appearance will be very simple on the pulling burn hair.

6, in the mold planning, on the hole or the surface of the smaller requirements of the public service, as far as possible to do adjustable inserts, easy to adjust in the trial mold and production, in order to simply reach the scale requirements of the parts to be up and down the mold together with the adjustable inserts. On the word mark, the requirements of the punch can be removed, do not need to dismantle the mold and waste of time.

7, planning hydrogen spring, according to CAE analysis of the pressure to plan, do not plan too large hydrogen spring, to prevent product cracking. The general situation is: pressure is small, the product is wrinkled, the pressure is large, the product is cracked. To deal with product wrinkles, you can choose to add local stretching bar method, the first fixed bit of sheet with stretching bar, and then stretching, to reduce wrinkles.

8, the first test mold, must slowly close down the upper mold, on the stretching process, must use the fuse to test the thickness of the material bit, the material gap to reach the thickness of the material and then test the mold, the cutter must be the first good. Stretching bar please use movable inserts, in order to adjust the height of the stretching bar.

9, the test mold, the reference hole, the reference surface must be mold with a good and then put the product on the inspection tool to measure, or sent to the CMM to do 3D report, otherwise there is no sense.

10, red Dan must be matched, fit rate of 80% or more, to be able to open the mouth, do CMM report, or the reference hole datum surface has been matched, the product has been very stable and dense, fit rate can be appropriately reduced. With red Dan is a very important matter, otherwise the product is not stable, can not carry out the later change the mold judgment, parts scale will not meet customer requirements.

11, customer sample office requirements: generally the first laser office → shear office → 100% OK office, in the laser office stage to be a good match of red Dan, feed the material adjusted to deal with cracking wrinkles, the scale of the public service problem, in the opening of the shear office basically change the primary problem, followed by fine-tuning (mold local improvement).

12, in the customer must have to cut the mouth of the Office but the process conditions are not mature, you can consider opening the soft material knife mouth (that is, directly with 45 steel knife mouth, change the cut directly welded, and so on the scale OK and then open the official hard material knife mouth).

13, on the 3D messy products, can choose 3D laser method to laser, in 3D laser must be done before the 3D graphics, CNC play a good reference point position and then sent to 3D laser, 3D laser also want to do positioning sand.

14, on the high strength steel plate, cutter material to choose A88 or V4 and other carbide materials.

15, in the test mold, in order to try the role of stretching, can be in different places on the material on the pad sandpaper to try the role of determining the role of the corresponding position in the activities of the stretching bar or activities of the hemp point array (that is, a piece of plating into a hemp point), used to start friction to hinder the material away.

16, bending more parts, adjust the mold according to the process step by step to adjust the bending.

17, adjusting the molding point of view, can close the small bending R angle or move the folding line benchmark to complete the purpose of reaching the molding point of view.

18, most of the choice of shims to adjust the molding public high and low, or left and right back and forth to move the molding public, shims are generally used stainless steel hard sheet. (If the customer is prohibited to use shims, wait for the mold adjusted and then make a new workpiece to the customer)

19, stainless steel mold molding parts, can not use TD, to use (TICN) or PVD.

20, to determine the guests when the official information to, in the trial mold, saving the use of information to prevent the phenomenon of insufficient information.

21. There are two kinds of sensors for the successive molds, one is the step sensor and the other is the drop sensor.

22, the slope of the waste funnel is not less than 30 degrees, on the low point of view of the waste box (Scope box), can be used to install pneumatic vibration (Pneumatic Vibration) to deal with.

23, on the impact of molding cut edge line, to select the molding and then cut, the special position can be used to complete the method of cross-cutting.

24, on a number of benchmark holes, it is best to choose a punch molding method to prevent step-by-step punching and cutting to affect the accuracy.

25, on the test mold analysis, must be after the test mold material band analysis step by step analysis, and to be attached to the red Dan material band.

26、About the product cracking, can be adopted in the pre-stretching package, extrusion, add sheet rod molding area, open holes and other methods, in the change of the mold before the CAE analysis.

27, the product material is divided into coil coil and sheet sheet two kinds of material, some coil material to the factory again after the need to slitting to the width of the material belt, generally in the slitting scale for the negative easement (minus 0.5mm), and the coil material inner diameter to fit the scale of the feed frame, to prevent too large or too small and too heavy.

28, mold processing, generally to line cut the pin hole as a touch number of benchmarks, and CNC in the programming, the operator will need to operate the coordinates of the two holes to the programmer, by the programmer to seek the point of view of the programmer after the program will be set up a point of view and then processed. Generally in the initial processing template is touching the edge of the processing does not need to seek the point of view.

29, the concept of fine blanking is to leave no blanking gap (or only 0.5%). General blanking gap for the thickness of the material 10%, the thicker the material, the larger the share of the gap.

30, hardware samples in the scale does not meet the requirements of the case, can be completed by shaping, including the plum pile, patting flat again, simple punching and other repair Phi Feng.

The above is some experience in the practice of stamping work, I hope that people reading this article have to help, progress in the mold on-time pass rate, reduce the number of times the test mold.