What is the maximum nominal diameter for which elliptical end caps can be formed in one piece at manufacturing plants these days?
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1. What is the maximum nominal diameter for which elliptical end caps can be formed in one piece at manufacturing plants these days? 2. For the shaping of oval end caps, stamping yields good results; is spinning then commonly used in manufacturing plants? 3. Also, does the standard elliptical head formed by stamping have a corner transition zone? If so, what is the size of the transition zone?
1. The width of steel plates available on the market is limited. 2. Small-scale stamping, large-scale spinning. The stamping dimensions are quite accurate. 3. The spun heads and stamped heads have similar dimensions, with the transition area being the same as that shown on the drawings.
It is no problem to achieve a diameter of 6 meters for spun caps.
1. Generally, a size of 1400 can be formed as a single sheet; for larger sizes, laminating is required. 2. It is suitable for stamping; spinning is used only in the absence of molds. 3. Elliptical heads all have corner transition zones, and the size of this area is related to the diameter of the head.
1. You mentioned whole boards; is assembly allowed? If allowed, it can reach 6000 mm; if not, it depends on how wide the plate is. 2. Spin forming is mainly used for single-piece manufacturing, while stamping is generally used for mass production. Additionally, the forming thickness range for spin-forming is smaller than that for stamping, depending on the capabilities of the equipment. 3. Corner transition zones definitely exist; they are the areas where a large radius transitions to a straight edge. Since it is an ellipse rather than a disk, there is no clear intersection point; therefore, an approximation of a disk is usually used for calculations, with a value of around 0.158D for small R.
I remember that the entire board could be over 2 meters long