Process method for welding high-speed steel bars

A process method and high-speed technology, which is applied in the fields of welding high-speed steel rods and cutting tools to process high-speed steel rods, can solve the problems of product size limitation, large weld seam, and insufficient edge firmness, etc., and achieve better welding effect and high heating efficiency , The effect of improving the firmness

Active Publication Date: 2012-07-04
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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  • Process method for welding high-speed steel bars
  • Process method for welding high-speed steel bars
  • Process method for welding high-speed steel bars

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Embodiment Construction

[0018] For the convenience of description, the cable stripping tool of the invention is described in detail below with reference to the accompanying drawings:

[0019] like figure 1 and figure 2 As shown in , a process method for welding high-speed steel bars, including a pre-welding preparation process and a welding process,

[0020] The pre-soldering preparation process includes, in chronological order, firstly spreading a layer of solder powder 2 on the substrate 2, superimposing solder 3 on top of the solder powder 2, spreading a layer of solder powder 2 on top of the solder 3, and soldering on the upper layer. A high-speed steel bar 4 is placed above the powder, the solder powder 2 is copper solder powder, the solder 3 is a copper plate, the thickness of the spread solder powder 2 is 0.3mm, and the thickness of the copper plate is 0.5mm; The welding process uses ultrasonic frequency induction heating equipment, and the substrate 2 and high-speed steel bar 4 on which th...

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Abstract

The invention provides a process method for welding high-speed steel bars. The process method comprises a preweld preparation procedure and a welding procedure; the preweld preparation procedure comprises the following steps in sequence: spreading a layer of welding powder on a base plate, stacking welding flux on the welding powder, spreading a layer of welding powder on the welding flux again, and placing high-speed steel bars on the upper layer of welding powder; superaudiable induction heating equipment is used during the welding procedure; and the base plate on which the welding powder and the welding flux are placed and the high-speed steel bars in the preweld preparation procedure are placed in the superaudiable induction heating equipment, the superaudiable induction heating equipment is started to increase the welding temperature to 1080 minus or plus 5 DEG C, and after the welding powder and the welding flux are melted completely between the base plate and the high-speed steel bars, the superaudiable induction heating equipment is turned off, and the base plate on which the high-speed steel bars are welded is taken out. The process method has the advantages that the firmness of welding is good and the abrasion resistance is better.

Description

technical field [0001] The invention relates to the technical field of tool production, in particular to a method for machining high-speed steel bars by a tool, in particular to a process method for welding high-speed steel bars. Background technique [0002] In order to save the manufacturing cost of some large-sized cutting tools, in the manufacturing process, due to the high hardness of the cutting edge, the high-speed steel bar for cutting is generally welded on the substrate of the steel material. There is a big difference with the thermal expansion coefficient of the steel substrate. After welding, due to the action of stress, there are undesirable phenomena such as large welds, cracks, peeling, and fragments. Yes, the high-speed steel bar is not strong. [0003] A large part of the reason for the above problems is that high-frequency induction heating equipment is generally used for heating welding when welding high-speed steel bars. Since the principle of induction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K28/00B23K37/00
Inventor 许纪刚
Owner DONGE LIYUAN MACHINERY KNIFE
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