Patent ID: 11897048
Assignee: HITACHI POWER SOLUTIONS CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. The friction stir welding method according to claim 10, wherein
in the first correction mode, the variable correction quantity is calculated by multiplying a coefficient calculated by dividing a difference calculated by subtracting the first threshold value from a current state quantity by a difference calculated by subtracting the first threshold value from the third threshold value by a maximum movement quantity as a maximum correction quantity for correcting the welding tool position for each setting based on welding conditions of welding tool, or the variable correction quantity is calculated by multiplying a coefficient calculated by dividing a difference calculated by subtracting the second threshold value from the current state quantity by a difference calculated by subtracting the second threshold value from the fourth threshold value by the maximum movement quantity.