How is the CNC punching edge hole done and what kind of process is it?

First of all, you have to understand that the flanging holes on sheet metal products are generally prepared for the next process tapping. Sheet metal mills generally encounter M3, M4, M5, M6 flanging. Flanging holes are divided into flange up and flange down (depending on your product).

First of all, pre-punch a hole (the hole diameter is determined according to your flanging m value, which is available in the mold information book).

Then, the pre-hole is flanged using a flanging die (a set of molds cannot be turned up and down at the same time, so they are purchased separately).

When ordering the mold at the end, you should pay attention to whether your next process tapping is extrusion tapping or cutting tapping, 80% of the sheet metal factory is extrusion (small hand drilling), and you need to make this remark with the ** business when ordering the mold. For example: Extrusion type (inner diameter after flanging), cutting type (inner diameter after flanging.

As for what you said about what the flanging looks like, I use 4 words to visualize this process, you see: "one" "one" "one" "" do you understand? Hehe.

You can imagine in your mind, for example, if we flush the cold plate, the gap between the upper and lower molds is normal, if we adjust the gap to or larger, what will happen to the mold flushing down? Is it going to turn the plate over, the principle is basically like this.

Make the bottom hole first, and then flange.

Flanging process.

The working principle of the trimming punching die: directly or by asking the upper die fixed on the upper die to form the mold, it is connected with the die handle through the mold handleChongdana cavity bedsliders. The zero fixed on the lower die forms the lower die of the die, and is fixed on the workbench of the punch by using the pressing plate.

According to the size of the workpiece, punching and tangencing.

The size and position of the punching force to ensure that the center of the punching force and the center of the mold coincide, and the length and width of the mold are estimated.

The principle of the trimming punching die:

Due to the ups and downs of the punching line, the lateral force generated by the angle ( ) between the punching normal direction and the punching direction is generated, and the magnitude of the force is related to the normal punching force and the size of the included angle, P side P punch sin (the analysis of the force illustrated by the diagram, the balance of the force, the structure of the anti-lateral force, etc.).

Estimate the closing height of the mold and the press.

Compare the parameters to see whether the selected press is suitable, and if it is not suitable, replace the press so as not to affect the design of the mold eggplant.

Summary. Taiyuan punching is divided into rolling, forging, extrusion, drawing, stamping and other process types, which not only changes the shape, but also significantly improves the comprehensive properties of the metal. I hope it can help you.

If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a good mood!

How to process edge hole punching, lead Bi Taiyuan punching processing is divided into rolling, forging, extrusion, drawing, stamping and other process types, which not only changes the shape, but also significantly improves the comprehensive properties of the metal. I hope it can help you. If my answer is helpful to you, please also give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and your support is the driving force for my progress.

Finally, I wish you good health and a good mood!

Diagonal holes are drilled on the sides of round steel.

Do you know how.

Hello dear, drill oblique holes with general methods, the drill bit just touches the surface of the workpiece is first single-sided noisy and simple force, so that the drill bit deviates and slips, resulting in the deviation of the center of the hole, and the hole drilled is difficult to ensure integrity, if the rigidity of the drill bit is insufficient, there will be no drilling into the workpiece due to the deviation of the drill bit, so that the drill bit is easy to collapse or break, so it can not be suspected of drilling oblique holes with the general method, and the following methods should be used to drill oblique trouser holes, 1Use an end mill with the same hole diameter to mill a flat surface on the bevel of the workpiece, and then continue drilling with a drill 2Use a chisel to chisel a small plane on the inclined plane of the workpiece, drill a large cone hole pit with a center drill or drill a shallow hole with a small drill bit, and drill a hole with the same drill bit as the hole diameter, I hope it can help you.

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