Looking for details on how these two items are manufactured

[etotheipi]

Hey guys,

Is anyone aware of some good quality (and available online) pages/references describing the how i) screws and ii) springs are manufactured? I'm mainly worried about the materials processing side of things, i.e. cooling from the melt, and then subsequent deformation processing.

Thanks, I really appreciate any help!

 

[Frabjous]

This site has a brief description.
http://www.madehow.com/

 

[Keith_McClary]

Screws are generally made from low to medium carbon steel wire, but other tough and inexpensive metals may be substituted, such as stainless steel, brass, nickel alloys, or aluminum alloy. Quality of the metal used is of utmost importance in order to avoid

The cold heading machine cuts a length of wire and makes two blows on the end, forming a head. In the head slotting machine, the screw blanks are clamped in the grooves around the perimeter of the wheel. A circular cutter slots the screws as the wheel revolves.

http://www.madehow.com/Volume-3/Screw.html
Now I know much more than before.

 

[etotheipi]

Thanks, I had a look and that seems like a good start. Do you know if there's also something more technical?

 

[Baluncore]

If it is tightened by turning the head, is a screw. You need to be more precise about the screw type, material, and the reason for your enquiry.

Springs are made from similar materials in many shapes and sizes. Springs are made using many processes. Again, be more precise.

Heat treatment is critical to both screws and springs.

 

[Keith_McClary]

more technical

It seems like a large subject. Just from the table here there are various alloys and some are quenched and tempered:
https://lightningboltandsupply.com/grade-5-bolts.html

 

[etotheipi]

Thanks for everyone's help! Because this is an independent research project I can't add any more details without running the risk of receiving too much help, so it's difficult to let you guys know what I'm after. But I do appreciate the replies. The links posted above are very good, so I'll follow up on those.

Thank you!