How is the inner diameter of a quasi-hemispherical head determined?
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When thinning the cylinder is connected to a quasi-hemispherical head, the inner diameter of the spherical head is certainly different from that of the cylinder. How is the inner diameter of the quasi-hemispherical head determined? Do head manufacturing plants have their own set of specifications and dimensions? If the inner diameter of the hemispherical head is determined by the design, wouldn’t the manufacturer need to create molds in many sizes with minimal differences?
In principle, it is not allowed to thin out the cylinder.
It is sufficient to design it to meet the strength and standard requirements; manufacturing can be carried out according to the design drawings. The inner diameter of a spherical head is definitely determined by the designer, and the method of determination follows relevant standards, specifications, and design requirements.
The people upstairs didn’t understand what the question was. . The key here is to check the allowable amount of misalignment for slot A (this is slot A on the ball). If a small piece is cut off, the inner diameter will decrease; theoretically, it’s necessary to ensure that this difference does not exceed the allowed level of misalignment. Generally, when pressing the ball cap, using the inner diameter of the cylinder poses no problem
First, determine the connection method between the spherical head and the cylinder, deciding which method from the appendix to use; then, based on the trimming length and allowance, the radius of the spherical head can be determined
After reading everyone’s advice, I think I understand now. I need to look at Figure D2 in 150.3 to see what type of connection is used; once that’s clear, I’ll be able to determine the inner diameter of the hemispherical head