Posted by mechlook info on March 31st, 2012 11:56 PM | 30 Comments This process is employed for the production of seamless tubes. It offers the most economical mechanical working process for the manufacture of seamless tubes. It consists of passing the hot rolled billet at 1100°C between two conical rollers and over ...
Posted by mechlook info on March 31st, 2012 11:55 PM | 15 Comments Extrusion is defined as the process of pushing the heated billet or slug of metal through an orifice provided into a die, thus forming an elongated part of uniform cross-section. The pressure is applied either hydraulically or mechanically. Aluminium, copper, ...
Posted by mechlook info on March 31st, 2012 11:55 PM | 13 Comments This is very useful operation for parts having uniform cross-section throughout and some head or other bigger shape at the ends e.g. bolts, rear-axle drive shafts with flanged ends etc. In upset forging operation, a bar of uniform section is ...
Posted by mechlook info on March 31st, 2012 11:55 PM | 36 Comments Pipes and tubes are generally made by rolling steel strip and plate to the proper size. The edges of the sheet are rolled in such a way that they either meet in a butt joint or a lap joint. Thus ...
Posted by mechlook info on March 31st, 2012 11:55 PM | 23 Comments Forging can be defined as the controlled plastic deformation of metals at elevated temperatures into a predetermined size or shape using compressive forces exerted through some type of die by a hammer, a press or an upsetting machine. It consists ...
Posted by mechlook info on March 31st, 2012 11:55 PM | 23 Comments Pipes and tubes are generally made by rolling steel strip and plate to the proper size. The edges of the sheet are rolled in such a way that they either meet in a butt joint or a lap joint. Thus ...
Posted by mechlook info on March 31st, 2012 11:52 PM | 6 Comments Theory of rolling. In rolling, a metal is forced through a pair of revolving rolls with plain or grooved barrels. The metal changes its shape gradually during the period in which it is in contact with the two rolls. ...
