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- Q5274489 subject Q10259295.
- Q5274489 abstract "A die head is a threading die that is used in the high volume production of threaded components.Die heads are commonly used on lathes, turret lathes, screw machines and CNC lathes. They may be used for either cutting a thread or rolling a thread. They may also be used for internal or external thread cutting.In operation, there are usually four moveable chasers that cut the thread then back away from the work to permit rapid removal of the tool. The lower picture at the right shows four sets of chasers. Each set of chasers is designed to cut a different thread. One set of chasers would be used at a time, each chaser is inserted into the die head (in the correct order) and the die head is closed bringing the chasers down to their cutting position. When sufficient length of thread has been cut the die head will open allowing for rapid retraction of the head without interference with the newly formed thread.The die head shown cuts an outside thread. There are also collapsible die heads that are used to cut an internal thread.The bottom picture shows a Die Head used for Thread Rolling. A Rolled Thread may have greater strength than a cut thread, though it usually requires more energy to roll a thread than cut one.".
- Q5274489 thumbnail Die_head.jpg?width=300.
- Q5274489 wikiPageExternalLink books?id=LLY5AAAAMAAJ&q=Group+of+Hartness+Automatic+Dies.
- Q5274489 wikiPageWikiLink Q10259295.
- Q5274489 wikiPageWikiLink Q1413277.
- Q5274489 wikiPageWikiLink Q3681647.
- Q5274489 wikiPageWikiLink Q6024544.
- Q5274489 wikiPageWikiLink Q749400.
- Q5274489 comment "A die head is a threading die that is used in the high volume production of threaded components.Die heads are commonly used on lathes, turret lathes, screw machines and CNC lathes. They may be used for either cutting a thread or rolling a thread. They may also be used for internal or external thread cutting.In operation, there are usually four moveable chasers that cut the thread then back away from the work to permit rapid removal of the tool.".
- Q5274489 label "Die head".
- Q5274489 depiction Die_head.jpg.