Process method of welding high speed steel bar
A process method and steel bar technology, which is applied in the field of welding high-speed steel bars and tool processing high-speed steel bars, can solve the problems of product size limitation, insufficient cutting edge firmness, large weld seam, etc., and achieve better welding effect and firmness Improvement, high heating efficiency effect
Active Publication Date: 2016-06-08
DONGE LIYUAN MACHINERY KNIFE
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Problems solved by technology
Since the frequency of high-frequency induction heating equipment is generally 20,000 to 1,000,000 cycles per second, the depth of current penetration is relatively shallow during heating, so the size of products produced by high-frequency induction welding equipment is relatively limited, especially for The welding of larger-sized workpieces is prone to the problem that the weld seam is too large and the cutting edge is not strong enough due to excessive stress concentration after welding
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[0017] For the convenience of description, the invention cable stripping tool is described in detail below in conjunction with the accompanying drawings:
[0018] Such as figure 1 with figure 2 As shown in , a process method for welding high-speed steel bars, including pre-welding preparation procedures and welding procedures,
[0019] The pre-soldering preparation process includes spreading a layer of solder powder 2 on the substrate 2 in chronological order, superimposing solder 3 on the top of the solder powder 2, spreading a layer of solder powder 2 on the top of the solder 3, and soldering on the upper layer. Place the high-speed steel bar 4 above the powder, the solder powder 2 is brazing powder, the solder 3 is a copper plate, and the thickness of the solder powder 2 is 0.3mm, and the thickness of the copper plate is 0.5mm; The welding process uses super-audio frequency induction heating equipment, and the substrate 2 and high-speed steel bar 4 placed with solder pow...
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Abstract
The invention provides a process method for welding high-speed steel bars, which includes a pre-welding preparation process and a welding process. The pre-welding preparation process includes spreading a layer of solder powder on the substrate in order of time, and then laying a layer of solder powder on the top of the solder powder. Superimpose solder, spread a layer of solder powder on top of the solder, and place high-speed steel bars above the upper layer of solder powder; the welding process uses super-audio frequency induction heating equipment, and places the solder powder and The substrate and high-speed steel bar of the solder are placed in the super-audio induction heating equipment, and the super-audio induction heating equipment is started to make the welding temperature reach 1080±5°C, and the super-audio induction is turned off when the solder powder and solder are completely melted between the substrate and the high-speed steel bar Heat the device and remove the base plate with the HSS bars welded on it. The invention has the advantages of good welding firmness and more wear resistance.
Description
technical field [0001] The invention relates to the technical field of cutting tool production, in particular to a method for cutting high-speed steel bars with cutting tools, in particular to a process for welding high-speed steel bars. Background technique [0002] In order to save manufacturing costs for some cutting tools with larger sizes, in the manufacturing process, due to the high hardness of the blade used for cutting, generally high-speed steel bars for cutting are welded on the substrate of steel materials, because the high-speed steel bars There is a large difference in the thermal expansion coefficient of the steel substrate. After welding, due to the stress, there are undesirable phenomena such as large weld seams, cracks, peeling off, and fragments. Yes, the cutting edge of the high-speed steel strip is not strong. [0003] A large part of the reasons for the above problems are due to the fact that high-frequency induction heating equipment is generally used ...
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IPC IPC(8): B23K28/00B23K37/00
Inventor 许纪刚
Owner DONGE LIYUAN MACHINERY KNIFE