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Friction stir welding tool

A technology of friction stir and tools, which is applied in the direction of manufacturing tools, cutting tools for lathes, welding equipment, etc., can solve problems such as excessive tightening of fixing bolts 104, decreased operating efficiency, and impact on productivity, so as to reduce material costs and prolong The effect of life and productivity improvement

Active Publication Date: 2014-04-30
HONDA MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, work efficiency decreases and productivity is affected
In addition, when an overload is applied to the probe 103 during the joining work, the fixing bolt 104 is tightened too much, and it may be difficult to remove it during the replacement work.

Method used

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  • Friction stir welding tool
  • Friction stir welding tool
  • Friction stir welding tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Such as figure 1 As shown, the tool 10 for friction stir welding is composed of a probe 13 having a pin portion 11 at the tip and an internal thread portion 12 at the base, a columnar holder 16 having a through hole 15 at the center of the shaft, and a The hole 15 passes through and has a bolt 18 screwed into the external thread portion 17 of the internal thread portion 12 at the front end, and a hollow ejector pin 19 interposed between the front end of the holder 16 and the base of the probe 13 .

[0033] The outer diameter of the ejector pin 19 is finished. A cage-side pin accommodating portion 21 is provided at a front end of the cage 16 , and the cage-side pin accommodating portion 21 is finished to correspond to the outer diameter of the ejector pin 19 . Also provided at the base of the probe 13 is a probe-side pin accommodating portion 22 that is finished to correspond to the outer diameter of the ejector pin 19 .

[0034] When the ejector pin 19 fits into the ...

experiment example

[0056] general conditions :

[0057] ■Sample: 3mm thick aluminum alloy (JIS ADC3 equivalent product) and 2mm thick 270MPa grade gallium-plated steel plate (JIS G3302) with a length of 300mm×width of 100mm are overlapped, and welded under the following conditions.

[0058] ■Probe rotation speed: 1000 revolutions per minute

[0059] ■Probe feed speed: 500mm per minute

[0060] ■The pressure of the probe: 1000~1500kN

[0061] ■Cage material: DAC55 (JIS-SKD61 (alloy tool steel) improved product.) produced by Hitachi Metal Tools Co., Ltd.

[0062] ■ Fasteners: SUS304 bolts

[0063] ■Material of ejector pin: SUS420

[0064] probe :

[0065] ■The size of the pin part: diameter 7mm x length 3.2mm

[0066] ■Material: For experiment 01, the probe is made of high-hardness high-speed tool steel.

[0067] For Experiment 02, the probe was made of a cobalt-based alloy that can expect heat resistance and high-temperature strength. For experiment 03, the probe is made of nickel-bas...

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PUM

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Abstract

Disclosed is a friction stir welding tool (10) equipped with a probe (13) and a holder (16). At the tip of the probe (13) there is a pin part (11), and at the base there are probe-side protrusions (24) and probe-side recesses (25). At the tip of the holder (16) there are holder-side recesses (27) which mate with the probe-side protrusions (24), and holder-side protrusions (28) which mate with the probe-side recesses (25). External force applied to the probe (13) is transmitted from the probe-side protrusions (24) to the holder-side recesses (27) and from the probe-side recesses (25) to the holder-side protrusions (28).

Description

technical field [0001] The present invention relates to improvements in tools for friction stir welding. Background technique [0002] As one type of joining method, there is a friction stir welding method. The friction stir welding method is a joining method in which a pin portion is rotated at a high speed and the frictional heat generated plastically flows the parts to be joined to achieve uniformity. A tool including a probe having a pin portion and a holder holding the probe is used for this joining. Since the replacement frequency of the probe increases due to the consumption of the probe, it is desirable to easily replace the probe with respect to the holder. [0003] As a tool for friction stir welding in which a probe is detachably attached to a cage, for example, a tool for friction stir welding disclosed in Patent Document 1 is known. Figure 8 A cross section of the friction stir welding tool disclosed in Patent Document 1 is shown. [0004] refer to Figure 8...

Claims

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Application Information

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IPC IPC(8): B23K20/12B23B27/16
CPCB23B31/11B23K20/1255B23B31/008B23K20/12
Inventor 宫原哲也佐山满大浜彰介福永大辅松藤裕之
Owner HONDA MOTOR CO LTD