Stainless steel thread processing method

Stainless steel thread processing method

Stainless steel thread processing method

    Application of screw theory can be traced back to 220 BC, the Greek scholarArchimedes screw for water created by the tool. 4th century AD, the Mediterraneancountries in the wine press to begin with the application of the principle of bolts and nuts. At that time the outer threads are wound with a rope to a cylindrical bar,then click here to tag engraving made of. The internal thread is often muffled with asoft material on the outer thread formed by hammering. Around 1500, the ItalianLeonardo da Vinci painted ? sketch thread processing units, the existing applicationsand switching gear female screw thread pitch different from the idea of processing.Since then, the mechanical method of cutting threads in the watch manufacturingindustry has been developing in Europe. 1760, British J. W. Wyatt, Wyatt and brotherwere cut using special devices patent system, wood screws. 1778, British J. Lumsdenhas been manufacturing a worm drive with a thread cutting device can be processed with high precision, long thread. In 1797, the British Mozley, H. improve the car by his bed, use of screw and gears turning home a different thread pitch of the metal and laying the basic methods of turning thread. 19th century 20's, Maudslay created the first processing thread using the tap and die. Early 20th century, the automobile industry to further promote the development of standardization and precision thread ﹑the development of efficient thread processing methods, various automatic and automatic shrink opening die head taps have invented, thread milling to begin. Early30s, there has been thread grinding. While thread rolling technology patents in the early 19th century there, but make it difficult for mold to develop very slowly, until the Second World War (1942 ~ 1945), due to the need for arms production and thread grinding technology solves precision mold problem, it was growing rapidly.

      Generally refers to forming thread cutting tool or abrasive workpiece

processing thread, there are mainly turning ﹑ ﹑ Tapping Milling Grinding ﹑ ﹑ ﹑

sets of grinding and wire cutting, etc. cyclone. Turning ﹑ thread milling and grinding, the workpiece per a turn, the machine drive chain cutter or grinding wheel to ensure Tool ﹑ accurate and uniform along the workpiece axis to move a lead. In tapping or threading, the cutting tool (tap or die) for relative rotation with the workpiece by the first thread groove formed to guide the cutting tool (or workpiece) for axial movement.