Technology for removing flash of inner hole in friction welding of hollow steel through oxygen blowing
A friction welding and hollow technology, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problem that machining equipment cannot carry out the process of removing flash in the inner hole, so as to shorten the processing time, ensure product quality, reduce The effect of production costs
Inactive Publication Date: 2011-09-14
湖北嘉裕钎具股份有限公司
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Problems solved by technology
However, the inner hole of the hollow steel often needs to pass water when drilling, so the inner diameter must be guaranteed to be unimpeded; in addition, the hollow steel is thin and long, and the machining equipment cannot carry out the processing of removing the flash of the inner hole; therefore, in the process of friction welding the hollow steel, There is no solution to the flash formed by the inner hole
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[0008] Further description will be made below using the embodiments shown in the accompanying drawings.
[0009] Firstly, the working conditions of the friction welding machine 1 will be described according to the embodiment shown in the drawings. 1 in the figure represents the friction welding machine. Because the friction welding machine 1 is a mature technology, the schematic diagram only shows the integrated relationship between the friction welding machine 1 and the oxygen blowing removal technology for inner hole flash. In the figure, hollow steel 1 4 and hollow steel 2 7 are clamped on the fixture of friction welding machine 1, hollow steel 1 4 corresponds to hollow steel 2 7, and the butt joint is indicated by a center line. During friction welding, the hollow steel 14 is clamped by the friction welding machine fixture to withstand the hollow steel 27; the hollow steel 27 is clamped by the friction welding machine 1 fixture and rotated so that two hollow steel drill ro...
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The invention discloses a technology for removing flash of an inner hole in friction welding of hollow steel through oxygen blowing, and relates to a processing technology for the flash formed in an inner hole of a pipe during friction welding of the metal pipe. The technology aims to remove the flash formed in the inner hole in the friction welding process of the hollow steel to ensure the smoothness of the inner hole. In the friction welding process of the hollow steel, the inner hole of the hollow steel is blown with oxygen to remove the flash. The oxygen blowing process is completed by blowing oxygen through a nozzle controlled by an electromagnetic switch controlled by a digital control device. In the friction welding process, high temperature is formed at a workpiece friction position, and oxygen has combustion-supporting function, so that the flash of the inner hole is melted when meeting the oxygen at high temperature, and is removed under the action of the blowing force of the nozzle, and the surface of the inner hole of the hollow steel is not damaged. By the technology for removing the flash of the inner hole in the friction welding of the hollow steel, time and labor are saved, the processing time after the hollow steel is welded is shortened, the production cost is greatly reduced, the production efficiency is improved and the product quality is ensured.
Description
technical field [0001] The invention relates to a processing technique for the flash formed in the inner hole of a pipe metal part during friction welding. Background technique [0002] At present, friction welding is widely used in industry. Because it has the advantages of simple preparation of welding parts, high degree of automation, low cost, clean welding process, no smoke, no material consumption, and can produce forged welded joints. Electricity and oxygen welding are limited to the surface of the welding workpiece, while friction welding can weld the entire metal welding surface together. At present, friction welding machines are commonly used in metal welding. However, after the welding of metal pipe fittings, such as hollow steel through friction welding, flashes will be formed on the outer diameter of the welding point and the friction of the inner hole. The outer diameter flash can be cut by lathe, grinder and other machining means. However, the inner hole o...
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Inventor 周志专周宝生叶凌云陈汉忠陈建新
Owner 湖北嘉裕钎具股份有限公司