Method for removing metal adhesive material on stirring head
A stirring head and metal technology, applied in the direction of metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems that affect the quality of heat input welding joints in the welding process, increase the difficulty of maintaining the sticking stirring head, and affect welding efficiency, etc.
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Embodiment 1
[0058] The friction stir welding method is used to weld two stainless steel plates with a thickness of 6.0mm in a butt joint manner. The shoulder diameter of the tungsten-rhenium alloy stirring head is 21mm, the diameter of the stirring needle is 7.5mm, and the length of the stirring needle is 5.7mm. Such as Figure 1a - Figure 1c As shown, a large amount of stainless steel metal sticky material is adhered to the shaft shoulder of the stirring head and the stirring needle, which causes the keyhole to be in the shape of a funnel, such as Figure 2a shown. Rotate and insert the stirring head with the stainless steel metal sticky material into the low carbon steel metal stripping plate, the rotation speed is 800rpm, the pressing amount is 0.5mm, and the residence time is 8 seconds. Such as Figure 1d - Figure 1f As shown, the material metal sticky material adhered around the mixing tip is visibly removed and a clean keyhole is formed, as shown in Figure 2b shown. Preferab...
Embodiment 2
[0060] The friction stir welding method is used to weld two thick titanium plates with a thickness of 6.0 mm in a butt joint manner, the diameter of the shoulder is 19 mm, the diameter of the stirring pin is 8 mm, and the length is 5.6 mm. Such as Figure 3a - As shown in 3c, a large amount of pure titanium metal sticky material is adhered to the shaft shoulder of the stirring head and the stirring needle, which leads to the funnel shape of the keyhole, such as Figure 4a shown. The tungsten-rhenium alloy stirring head adhered with a large amount of pure titanium metal binder is rotated and inserted into the low-carbon steel metal stripping plate, the rotation speed is 500rpm, the downward pressure is 0.45mm, and the residence time is 2 seconds. Such as Figure 3d As shown in -3f, the material adhered around the stirring head is obviously removed, but a certain amount of pure titanium metal adhesive is still adhered to the position where the shaft shoulder and the stirring n...
Embodiment 3
[0062] The friction stir welding method is used to weld two AZ31 magnesium alloy plates with a thickness of 4.0mm in a butt joint manner. The diameter of the shoulder of the stirring head is 21mm, the diameter of the stirring pin is 4.2mm, and the length is 3.7mm. , a large amount of magnesium alloy metal sticky material is adhered to the shaft shoulder of the stirring head and the stirring needle, and the steel stirring head adhered to the magnesium alloy metal sticky material is rotated and inserted into the 6061 aluminum alloy metal stripping plate, the rotating speed is 1200rpm, and the pressure is lowered. The amount is 0.35 mm, and the dwell time is 4 seconds. Adhered material around the agitator head is removed.
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