Metal stamping parts expansion formula calculation method, the designer can be discuss
Metal stamping parts stamping mold designers, product belongs to the essential skill.
Provide a 3 d product figure or PDF size tolerance, we need to process after the analysis of product mold structure type, material, mould quotation, etc.
In order to obtain the product specifications, the original size must expand the existing products, in order to get initial size products.
Bring about continuous mold 1, metal stamping parts products principle actually, metal stamping parts need to be original size, need real calculation part only deformation area (
The rest of the graphic size remains the same, there is no need to calculate.
Will need to calculate the length of the bending position usually referred to as: the amount of compensation, represented by the letter K.
Straight segment products straight segment size = + + offsets bring about metal stamping parts, compensation amount 2 K calculation method for different materials, different thickness and different angles and different bending inner arc to compensate the influence of the amount is very big, when computing the need for comprehensive consideration.
Amount of compensation is not fixed, but after years of mold practice summed up a set of formula.
In the process of product bending, near the inner material and near the lateral changes of, the inside of the compression, the lateral stretching.
Therefore, man-made concluded that this one area for neither compression or tensile region, the region known as: neutral layer, represented by letter lambda.
Bring about metal stamping parts,
Bending parts 3, the choice of neutral layer method to calculate the neutral position need to be determined according to the different situation, often: according to material thickness, bending Angle, bending inner arc various value calculation method in the following table: bring the neutral layer, compensation amount calculation formulas for example: a metal stamping parts bending Angle is 90 °, measuring bending R for Angle, material thickness of 0.
5, the bending position compensation amount is how much?
Answer: according to the formula is: K = 0.
4 * 0.
5 = 0.
2 mm the position offsets to 0.
The above formula formula of general metal stamping parts, need to be flexible use, usually in combination with bending process calculation, not rigid practices.
This is why a lot of friends have a formula, calculate the total gap bigger.
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