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Friction stir welding device and friction stir welding method

A technology of friction stir and joining devices, applied in welding equipment, metal processing equipment, manufacturing tools, etc.

Pending Publication Date: 2022-05-13
HIATACHI POWER SOLUTIONS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, it can be seen that it is not necessarily an appropriate correction method when the component of the load factor exceeding the predetermined range is small and within the range where the required joint quality can be maintained.

Method used

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  • Friction stir welding device and friction stir welding method
  • Friction stir welding device and friction stir welding method
  • Friction stir welding device and friction stir welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] "Basic Controls of This Embodiment"

[0030] The friction stir welding device and the friction stir welding method of this embodiment control the Z-axis to move the driving mechanism up and down so that the current state quantity (current state quantity) during friction stir welding is smaller than the reference state quantity indicating the normal range of the state quantity , use the calculated absolute value of the correction to correct the position of the bonding tool in the vertical direction (downward direction of the Z axis), and when the current state quantity is greater than the reference state quantity, use the calculated absolute value of the correction The joint tool position is corrected in the vertical direction (Z-axis upward direction).

[0031] In this embodiment, friction stir welding in which the position of the joining tool is adjusted (corrected) using the load torque (load factor) of the spindle motor as the "state quantity" will be described.

[...

Embodiment 2

[0090] "Basic Controls of This Embodiment"

[0091] In the friction stir welding device and friction stir welding method of this embodiment, the Z-axis is controlled to move the drive mechanism up and down so that when the current state quantity in friction stir welding is smaller than the reference state quantity, the absolute value of the calculated correction amount is used. Correct the position of the bonding head in the upward direction of the Z axis (vertical upward direction), and correct the bonding head in the downward direction of the Z axis (vertical downward direction) by the absolute value of the calculated correction amount when the current state quantity is greater than the reference state quantity Location.

[0092] In this embodiment, friction stir welding in which the position of the bonding tool is controlled (corrected) using the distance from the surface of the member to be bonded to the predetermined position of the bonding head as the "state quantity" wi...

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Abstract

The invention provides a friction stir welding device and a friction stir welding method. This friction stir welding device is provided with: a welding tool which is configured from a shoulder and a probe supported by the shoulder, and which joins a plurality of members to be welded by inserting the plurality of members to be welded and advancing while rotating; a spindle motor connected to the engagement tool and rotating the engagement tool in a predetermined direction; a joint head supporting the spindle motor; and an apparatus main body that supports the bonding head, applies a drive signal to the spindle motor, and causes the bonding tool to travel along the bonding line while rotating the bonding tool, the apparatus main body being provided with: a first correction mode in which the position of the bonding tool is corrected on the basis of a variable correction amount calculated from a predetermined calculation formula on the basis of the amount of variation, and a second correction mode in which the position of the bonding tool is corrected on the basis of the variable correction amount; the amount of change is the amount of state indicating the amount of control in the Z-axis upward direction or the Z-axis downward direction of the bonding head when friction stir bonding is performed on the member to be bonded by the bonding tool; and a second correction mode in which the position of the bonding tool is corrected on the basis of a fixed correction amount preset in accordance with the amount of variation.

Description

technical field [0001] The present invention relates to a friction stir welding apparatus and a friction stir welding method for joining members to be joined by friction stir welding, and particularly relates to a technique suitable for joining members to be joined requiring high-quality (high-precision) joining. Background technique [0002] Friction Stir Welding (FSW: Friction Stir Welding) in which the materials to be joined are softened by the frictional heat generated by rotating the cylindrical joining tool and the parts to be joined are stirred does not use raw materials other than the material, so fatigue strength Since the material is high and the material does not melt, bonding with little welding deformation (strain) can be performed, and it is expected to be applied in a wide range of fields such as aircraft and automobile bodies. [0003] In a friction stir welding device (FSW device), in order to ensure the required welding quality for the parts to be joined, Z...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12
CPCB23K20/12B23K20/123B23K20/125B23K20/1255
Inventor 石黑幸一筱原俊船原恒平宫部升三中岛岩
Owner HIATACHI POWER SOLUTIONS CO LTD
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