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Water-cooling stirring head used for friction stir welding and water cooling circulation method

A technology of friction stirring and stirring head, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of complex structure of stirring head, high manufacturing cost, unsatisfactory cooling effect of stirring head, etc., and achieve novel cooling cycle mode , Low manufacturing cost, and the effect of improving welding quality and stability

Active Publication Date: 2017-12-15
BEIJING FSW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem solved by the present invention is that the cooling effect of the existing friction stir welding stirring head is not ideal, the structure of the stirring head is too complicated, and the manufacturing cost is high, thereby providing a water-cooled stirring head for friction stir welding and a method of water cooling cycle

Method used

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  • Water-cooling stirring head used for friction stir welding and water cooling circulation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1The shown water-cooled stirring head for friction stir welding mainly includes a main shaft 1, a fixed frame 2, a handle 3, a sheath 4, a sealing ring 5, and a stirring head 6, and the handle 3 is installed on the main shaft 1, the stirring head 6 is mounted on the lower end of the handle 3, the handle 3 and the stirring head 6 rotate with the main shaft 1, the sheath 4 surrounds the outside of the upper half of the stirring head 6, the main shaft 1 The outer surface is covered with a welding equipment shell 7, and the fixed frame 2 is composed of two symmetrical bent plates. Installed on the left and right sides of the outer surface of the sheath 4, the fixed frame 2, the sheath 4, and the welding equipment shell 7 do not rotate with the main shaft 1, and the sheath 4 is provided with a water inlet 43 and a water outlet 44. The water inlet 43 and the water outlet 44 are located in the middle of the front of the sheath 4 one above the other, and are pro...

Embodiment 2

[0035] Embodiment 2: as figure 1 The shown water-cooled stirring head for friction stir welding mainly includes a main shaft 1, a fixed frame 2, a handle 3, a sheath 4, a sealing ring 5, and a stirring head 6, and the handle 3 is installed on the main shaft 1, the stirring head 6 is mounted on the lower end of the handle 3, the handle 3 and the stirring head 6 rotate with the main shaft 1, the sheath 4 surrounds the outside of the upper half of the stirring head 6, the main shaft 1 The outer surface is covered with a welding equipment shell 7, and the fixed frame 2 is composed of two symmetrical bent plates. Installed on the left and right sides of the outer surface of the sheath 4, the fixed frame 2, the sheath 4, and the welding equipment shell 7 do not rotate with the main shaft 1, and the sheath 4 is provided with a water inlet 43 and a water outlet 44. The water inlet 43 and the water outlet 44 are located in the middle of the front of the sheath 4 one above the other, a...

Embodiment 3

[0045] Such as figure 1 The shown water-cooled stirring head for friction stir welding mainly includes a main shaft 1, a fixed frame 2, a handle 3, a sheath 4, a sealing ring 5, and a stirring head 6, and the handle 3 is installed on the main shaft 1, the stirring head 6 is mounted on the lower end of the handle 3, the handle 3 and the stirring head 6 rotate with the main shaft 1, the sheath 4 surrounds the outside of the upper half of the stirring head 6, the main shaft 1 The outer surface is covered with a welding equipment shell 7, and the fixed frame 2 is composed of two symmetrical bent plates. Installed on the left and right sides of the outer surface of the sheath 4, the fixed frame 2, the sheath 4, and the welding equipment shell 7 do not rotate with the main shaft 1, and the sheath 4 is provided with a water inlet 43 and a water outlet 44. The water inlet 43 and the water outlet 44 are located in the middle of the front of the sheath 4 one above the other, and are pr...

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Abstract

The invention discloses a water-cooling stirring head used for friction stir welding. The water-cooling stirring head mainly comprises a spindle, a fixing frame, a cutter handle, a protective jacket, a sealing ring and a stirring head body. The cutter handle is mounted at the lower end of the spindle. The stirring head body is mounted at the lower end of the cutter handle. The outer portion of the upper half part of the stirring head body is encircled with the protective jacket. The protective jacket is provided with a water inlet and a water outlet and internally provided with a water inlet tank and a water outlet tank. The position, corresponding to the water inlet tank of the protective jacket, of the stirring head body is provided with a water inlet opening. The position, corresponding to the water outlet tank of the protective jacket, of the stirring head body is provided with a water outlet opening. A cooling cavity is formed in the stirring head body. The water inlet opening and the water outlet opening communicate with the cooling cavity. The water-cooling stirring head is reasonable in structure design, simple in structure, capable of meeting the cooling liquid circulation demand, low in manufacturing cost and novel in cooling circulation mode, the stirring head is forcibly cooled, the temperature of the stirring head is lowered, abrasion of the stirring head is reduced, the service life of the stirring head is prolonged, and the welding quality and stability are improved.

Description

technical field [0001] The invention relates to the field of friction stir welding, in particular to a water-cooled stirring head for friction stir welding and a water-cooling cycle method. Background technique [0002] Friction Stir Welding (FSW for short) is an innovative solid-phase joining technology. It uses the frictional heat generated between the stirring head and the workpiece to make the workpiece in a thermoplastic state. The stirring head rotates at a high speed and moves forward to be in a thermoplastic state. The metal in the state is continuously transferred from the front end to the rear end, and through the joint action of the shoulder shoulder, a dense weld is formed. [0003] The friction stir welding technology mainly generates a large amount of frictional heat through the friction between the stirring head with the stirring needle and the shaft shoulder and the workpiece to be welded to soften the weld material, and then reach a thermoplastic state, resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/26
CPCB23K20/122B23K20/26
Inventor 孟强栾国红董继红张坤
Owner BEIJING FSW TECH
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