This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Die head" – news · newspapers · books · scholar · JSTOR(August 2009) (Learn how and when to remove this message)
A die head is a threading die that is used in the high volume production of threaded fasteners.
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.
Die Head for Thread Rolling
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.
notable heads of state and heads of government who have died from aviation accidents, usually while in office. Died in office Died in office Died in...
controlled and chaired by French businessman Bernard Arnault, who also heads LVMH. Dior holds 42.36% shares and 59.01% of voting rights within LVMH. The company...
The Head of the Commonwealth is the ceremonial leader who symbolises "the free association of independent member nations" of the Commonwealth of Nations...
Bullet in the Head (traditional Chinese: 喋血街頭; simplified Chinese: 喋血街头) is a 1990 Hong Kong action film written, produced, edited and directed by John...
Heads You Die is a novel written by Steve Cole, which is the second book by the author in the Young Bond series, and the seventh chronological novel overall...
No Time to Die is a 2021 spy film and the twenty-fifth in the James Bond series produced by Eon Productions, starring Daniel Craig in his fifth and final...
Die Hard is a 1988 American action thriller film directed by John McTiernan and written by Jeb Stuart and Steven E. de Souza based on the 1979 novel Nothing...
after undergoing a head transplant after five years of being cryogenically frozen. Film and television The Brain That Wouldn't Die (1962), science-fiction/horror...
a similar process but with two, or more, extruders coupled to a single diehead in which the individually extruded melts are brought together and finally...
Forever. Die Hard with a Vengeance is the third film in the Die Hard film series after Die Hard 2 and was later followed by Live Free or Die Hard and...
Live Free or Die Hard (released as Die Hard 4.0 outside North America) is a 2007 American action thriller film directed by Len Wiseman, and serves as...
them but, after recognizing his apparent prescience, she allows herself to die, ordering Cage to find her on his next loop. Cage quickly convinces the reset...
Anthony Stewart Head (born 20 February 1954) is an English actor and singer. Primarily a performer in musical theatre, he rose to fame in the UK in the...
Pyramid Head, also known as "Red Pyramid", "Red Pyramid Thing" (赤い三角頭, Akai Sankakutō), or "Triangle Head" (三角頭, Sankaku Atama) is a character from the...
Die Hard 2 (also known by its tagline Die Harder or Die Hard 2: Die Harder) is a 1990 American action thriller film directed by Renny Harlin, written...
Ready to Die is the debut studio album by American rapper The Notorious B.I.G., released on September 13, 1994, by Bad Boy Records and Arista Records...
A number of heads of state and heads of government have taken their own lives, either while in office or after leaving office. National leaders who take...
version released on The Beavis and Butt-Head Experience. The Albini-recorded version of "I Hate Myself and Want to Die" was also set to be released as a B-side...
Global Information
