Rolling is a process method in whi秒少ch the billets of 路們certain metal materials are 窗好rolled by rolling tools with a cert日輛ain cross-section, res玩遠ulting in rational線理 deformation in the producti裡議on area, thereby海劇 forming the correspo會們nding cross-secti城數on of the workpiec路關e.

From this, it c麗雨an be seen that hydraulic screw thr吧新ead is a kind o鄉線f chip free threadi數南ng method. The essence of 林技a thread rolling machin家小e is to use the plasticity of certain 又體materials in the cold state to th國海read, causing the blank to undergo pl懂愛astic deformation and cre爸去ate corresponding threads under懂哥 the pressure of the rolling limit問妹 tool.

The process of rolling th冷師reads in a cold state has be村對en in progress since 1831, wh體國en a thread control 兵區machine was first used to twis街車t the drill bolts used to fast件舞en railway sleepers. 分書However, it was not widely used for r醫新olling precision threads unti下哥l 1940. This is mainly due t內會o the fact that in the late 19th討煙 and early 20th centur土科ies, the blank material was n綠什ot suitable for rolling. With the fur校女ther improvement o開鐘f the mechanical properties of blank ma什光terials, as well as the successfu物音l development of precision h吧花ydraulic tools and higher techno木拍logical performance廠黃 thread rolling 志房machines, the ro門見lling processing tech說身nology of thread rollin照銀g machines has gained greater popula視空rity, and can be used in carbon sodiu好民m "Alloy stee藍讀l (including st風我ainless steel, tool steel, br些算onze, brass, aluminum, st來公ainless steel, dril什老l, nickel, powder metallurgy, a低煙nd plastic) is used for rollin遠又g processing various typ河著es of threads (including山學 precision thre街舊ads) on various b風海lank materials, such as taps, engine a中事nchor bolts, power drill bolts, spin作務dle and screw threads, and th男樹reads on hollow thin-wa房湖lled parts.".

In the process of 機妹hydraulic threading內女, the processed threa街日d is the result of redistribution 店歌of the blank metal extruded fro日站m the working thread of the r美間olling tool.