{"id":13693,"date":"2019-09-20T07:32:52","date_gmt":"2019-09-20T07:32:52","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=13693"},"modified":"2020-05-07T07:30:43","modified_gmt":"2020-05-07T07:30:43","slug":"is-cold-upsetting-the-same-as-cold-extrusion-whats-the-difference-between-them","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/it\/is-cold-upsetting-the-same-as-cold-extrusion-whats-the-difference-between-them\/","title":{"rendered":"La sformatura a freddo \u00e8 la stessa dell'estrusione a freddo? Qual \u00e8 la differenza tra loro?"},"content":{"rendered":"
Let ‘s just cut into the case.<\/p>\n\n\n\n
Cold extrusion of cold extrusion workpiece is to place metal blank in the cold extrusion die cavity. At room temperature, pressure is exerted on the blank through the fixed punch on the press, so that the metal blank can produce plastic deformation and the processing method of parts is made. Obviously, cold extrusion processing relies on the die to control the metal flow, and depends on the large volume of metal to rotate. Move to form parts. In terms of extrusion equipment, our country has the ability to design and manufacture various tonnage extrusion press. In addition to general mechanical press, hydraulic press and cold extrusion press, friction press and high-speed and high-energy equipment are successfully used for cold extrusion production.<\/p>\n\n\n\n
If the blank is extruded without heating, it is called cold extrusion. Cold extrusion is one of the processing technologies for parts without chips and with few chips, so it is an advanced processing method in the plastic processing of metal chips. If the blank is heated to the temperature below the recrystallization temperature for extrusion, it is called warm extrusion. Warm extrusion still has the advantage of less chips. Cold extrusion technology is an advanced production technology with high precision, high efficiency, high quality and low consumption. It is widely used in the large-scale production of small and medium forgings. Compared with hot forging and warm forging, it can save 30%-50% of material and 40%-80% of energy. It can also improve the quality of forgings and the working environment. At present, cold extrusion technology has been widely used in fasteners, machinery, instrumentation, electrical appliances, light industry, aerospace, shipping, military and other industrial sectors, and has become one of the indispensable important processing means in metal plastic volume forming technology. With the progress of science and technology and the continuous improvement of technical requirements for products in automobile, motorcycle, household appliances and other industries, cold extrusion production technology has gradually become the development direction of fine production of small and medium forgings. Cold extrusion includes forward extrusion, backward extrusion, compound extrusion and radial extrusion.<\/p>\n\n\n\n