Views: 317 Author: Site Editor Publish Time: 2021-11-17 Origin: Site
In many cases, when facing plates that need to be crimped and bent, and the hardness of those plates is relatively high, this time is the time for the press brake machine to come into play. So, what do you know about the bending radius of the press brake machine? Next, let's take a look at the bending radius of the press brake machine. Here are some answers.
Here is the content list:
Free bending
Imprint bending
When the press brake machine adopts free bending, the bending radius is zero.156 times the die gap distance. throughout the free bending method, the gap distance of the die ought to be eight times the thickness of the metal material. If the bending radius is sort of tiny because of the material thickness, a flat-bottom die should be fashioned. However, the pressure needed for forming a flat-bottom die is regarding four times larger than that of free bending. If the bending radius is a smaller amount than the thickness of the fabric, a punch with a front-end fillet radius smaller than the thickness of the fabric should be used, and therefore the imprint bending methodology should be used. during this method, ten times the pressure of free bending is needed.
In terms of free bending, the punch and also the die square measure processed at 85° or less. When using a press brake machine, pay attention to the gap between the punch and the die at the bottom of the stroke, and the excessive bending that is sufficient to compensate for the spring back and keep the material at about 90°. Generally, the spring back angle of the free bending die on the new bending machine is ≤2°, and also the bending radius is adequate zero.156 times the gap distance of the die. For the bending of round-bottomed concavo-convex molds, the mold angle is mostly eighty-sixed to 90°. At the rock bottom of the stroke, there ought to be a niche slightly larger than the thickness of the fabric between the male and feminine molds. The forming angle is improved because the bottomed die has a larger bending tonnage, which reduces the stress that usually causes spring back within the bending radius.
Imprint bending
The imprint bending is that the same because of the bending of the flat-bottom die, except that the front of the punch is processed to the desired bending radius, and therefore the gap between the punch and therefore the die at the rock bottom of the stroke is smaller than the fabric thickness. Since enough pressure is applied to force the front of the punch to contact the fabric, spring back is avoided. to decide on a very cheap tariff specification, it's best to arrange for a bending radius larger than the thickness of the fabric and use the free bending methodology the maximum amount as doable. once the bending radius is giant, it typically doesn't affect the standard of the press brake machine and its future use.
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