CN102218593B - Friction stir welding process method for half slot part - Google Patents
Friction stir welding process method for half slot part Download PDFInfo
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- CN102218593B CN102218593B CN 201110169882 CN201110169882A CN102218593B CN 102218593 B CN102218593 B CN 102218593B CN 201110169882 CN201110169882 CN 201110169882 CN 201110169882 A CN201110169882 A CN 201110169882A CN 102218593 B CN102218593 B CN 102218593B
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Abstract
The invention belongs to the technical field of mechanical manufacturing, in particular relates to a friction stir welding process method for a half slot part by applying a friction stir welding method. The process method comprises the following steps of: fixing a bottom plate and the half slot part on a workbench or the workbench and a base plate by adopting a press plate and a bolt group; welding by adopting friction stirring, wherein a stirring head does longitudinal movement along a side edge of the half slot part through rotation of the stirring head; and forming a weld joint in a stirring part of an overlap position of two side edges of the base plate and the half slot part and completing welding. Compared with prior art of consumable electrode gas shielded welding or argon tungsten-arc welding, the strength of the weld joint can be greatly enhanced, the welding deformation is reduced, the weld joint is attractive, postweld heat treatment is not required, the labor intensity is greatly reduced, and requirement of a worker for operation skill is low.
Description
Technical field
The invention belongs to machinery manufacturing technology field, be specifically related to the stirring friction-welding technique method that a kind of method that adopts friction stir welding is finished the semicircle groove shape part.
Background technology
All can relate to a kind of employing semicircle channel member as shown in Figure 1 in a lot of product structure design, it comprises base plate 6 and semicircle groove shape part 8.Generally be designed in the groove and can take away heat or lubricate by liquid.This member generally all can require weld seam can bear certain pressure and can leakage.This semicircle channel member generally all is welded, and the welding method that adopts generally is gas metal-arc welding or argon tungsten-arc welding, and as shown in Figure 5,10 is weld seam.
When this semicircle channel member adopts copper alloy or aluminium alloy to be made, because the coefficient of heat transfer of copper alloy or aluminium alloy is large, the welding deformation that causes of welding is larger, is easier to the requirement that produces defective and be difficult to reach sealing, and the intensity of its weld seam also only has about 50% of mother metal.
When adopting gas metal-arc welding or argon tungsten-arc welding to come soldering copper alloy or aluminium alloy etc., it is large that welding surroundings pollutes, and labor strength is large, sometimes needs weld preheating or post weld heat treatment, and requires very high to workman's labour skill.
Summary of the invention
The objective of the invention is the defects that exists in the present technology; a kind of stirring friction-welding technique method of semicircle flute profile metal parts is provided; it is compared with existing gas metal-arc welding or argon arc welding of tungsten; can greatly improve weld strength; reduce welding deformation, appearance of weld is attractive in appearance, does not need post weld heat treatment; and reduce labor intensity greatly, less demanding to workman's operative skill.
The stirring friction-welding technique method of semicircle groove shape part of the present invention is to adopt the method for friction stir welding to finish the welding of semicircle groove shape part on base plate, and it comprises the step of following order:
(1) base plate is placed on the workbench, adopt pressing plate and bolt group more than 2 groups that base plate is fixed on the workbench at a side of base plate;
(2) the semicircle groove shape part is covered place on the base plate, adopt pressing plate and bolt group more than 2 groups that the semicircle groove shape part is fixed on the workbench at another side of base plate;
(3) at first, with pressing plate and bolt group base plate is being fixed in the semicircle groove shape part of this side on the workbench and the overlapping of base plate, the welding of employing agitating friction, be that stirring-head passes through its rotation simultaneously along the side lengthwise movement of semicircle groove shape part, make the mixing part of base plate and semicircle groove shape part form a weld seam and finish a bonding wire;
(4) again with fixed base plate and fixedly pressing plate and the exchange of bolt group of semicircle groove shape part, stirring-head is moved on to the semicircle groove shape part of another side and the overlapping of base plate, adopt the agitating friction welding identical with step (3), be that stirring-head passes through its rotation simultaneously along the side lengthwise movement of semicircle groove shape part, make the mixing part of base plate and semicircle groove shape part form a weld seam and finish another bonding wire;
(5) adopt mach method that the overlap of two weld seams is removed to form weld seam attractive in appearance.
Affect the Assembly stability of base plate and semicircle groove shape part for overcoming a part of open slot in the workbench, also be convenient to the stability of stirring-head when work, in the step (1), between base plate and workbench, increase a backing plate.
For making attractive in appearance behind base plate and the semicircle flute profile weld parts, in the step (2), the semicircle groove shape part is covered place on the base plate before, base plate contact part with the semicircle groove shape part, be processed as the groove of heavy next semicircle flute profile part edge thickness.
More particularly, described pressing plate and bolt group comprise the bolt that passes through hole on backing plate and/or the workbench, bolt is threaded connection on pressing plate, and pressing plate one end is supported on backing plate or the workbench by gripper shoe, and the other end is pressed on the base plate or the top of semicircle groove shape part.
The stirring friction-welding technique method of semicircle groove shape part of the present invention also can adopt another kind of similarly technical scheme, and it comprises the step of following order:
(1) base plate is placed on the workbench, adopt pressing plate and bolt group more than 2 groups that base plate is fixed on the workbench at the dual-side of base plate;
(2) the semicircle groove shape part is covered place on the base plate, adopt method single-point or the multiple spot tack welding of interval weldering with gas metal-arc welding or argon tungsten-arc welding, make the semicircle groove shape part tentatively be fixed on the base plate;
(3) at first, at the semicircle groove shape part of base plate one side and the overlapping of base plate, the welding of employing agitating friction, namely stirring-head simultaneously along the side lengthwise movement of semicircle groove shape part, makes the mixing part of base plate and semicircle groove shape part form a weld seam and finish a bonding wire by its rotation;
(4) again stirring-head is moved on to semicircle groove shape part and the base plate overlapping of another side of base plate, adopt the agitating friction welding identical with step (3), be that stirring-head passes through its rotation simultaneously along the side lengthwise movement of semicircle groove shape part, make the mixing part of base plate and semicircle groove shape part form a weld seam and finish another bonding wire;
(5) adopt mach method that the overlap of two weld seams is removed to form weld seam attractive in appearance.
The present invention makes the contact-making surface agitating friction of semicircle groove shape part and base plate produce high temperature by stirring-head, and fuses into one, and has both improved the tensile strength of weld seam, and aluminium and welded seam of aluminium alloy tensile strength can reach more than 80% of mother metal; Can reduce widely welding deformation again, increase work efficiency, reduce production costs; And dwindled the volume of this class formation part; Stress corrosion under also effectively having prevented to work long hours produces.The present invention provides a kind of new structure and stirring friction-welding technique for the semicircle groove shape part of metal species and the welding forming of base plate.
Description of drawings
Fig. 1 is the cross-sectional view of semicircle channel member.
Fig. 2 is for adopting the cross-sectional view of the semicircle channel member after agitating friction welds.
Fig. 3 is the structural representation of stirring friction-welding technique embodiment of the method for the present invention.
Fig. 4 is top view embodiment illustrated in fig. 3.
Fig. 5 is the structural representation of the semicircle channel member after the prior art welding.
Fig. 6 is the structural representation that agitating friction of the present invention welds another embodiment.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 3, it is the structural representation of an embodiment of process of the present invention.In Fig. 3, first backing plate 2 is placed location on the workbench 1, again base plate 6 is placed on the backing plate 2, limit, left side at base plate 6, adopt bolt 5 to intert and tighten at pressing plate 4 behind the through hole on workbench 1 and the backing plate 2, so just make pressing plate 4 push down base plate 6 by gripper shoe 3 and make it to be fixed on workbench 1 and the backing plate 2; Referring to Fig. 4, on the limit, left side of base plate 6, be provided with 3 groups of such pressing plates and bolt group.Semicircle groove shape part 8 covered place on the base plate 6 location, right edge at base plate 6, also adopt bolt 5 to intert and tighten at pressing plate 4 behind the through hole on workbench 1 and the backing plate 2, the top that so just makes pressing plate 4 push down semicircle groove shape part 8 by gripper shoe 3 makes it to be fixed on workbench 1 and the backing plate 2; Referring to Fig. 4, in the right edge of base plate 6, also be provided with 3 groups of such pressing plates and bolt group.At first, at the left side of base plate 6 and the left side overlapping of semicircle groove shape part 8, stirring-head 7 forms a weld seam and finishes a bonding wire in the mixing part of base plate 6 and semicircle groove shape part 8 by rotation with along the lengthwise movement of semicircle groove shape part 8.Then, fixedly three groups of pressing plates and the bolt group of semicircle groove shape part 8 are exchanged with left side fixed base plate 6 and the right again, the right that stirring-head 7 is moved on to base plate 6 needs the place of friction stir welding, stirring-head 7 forms a weld seam and finishes an other bonding wire in the mixing part of base plate 6 and semicircle groove shape part 8 also by rotation with along the lengthwise movement of semicircle groove shape part 8.Because the impact of welding overlap adopts mach method that the weld seam overlap is removed to form weld seam attractive in appearance after being soldered two weld seams.
As seen from Figure 3, in the place that base plate 6 contacts with semicircle groove shape part 8, base plate 6 is machined the degree of depth of the edge thickness of slab of getting rid of a semicircle groove shape part 8.Fig. 2 is that as seen from the figure, the upper plane of the upper surface of stirring friction welding seam 9 and base plate 6 in one plane with the cross-sectional view after base plate 6 and the welding of semicircle groove shape part 8 agitating frictions.Like this, just, reached an effect attractive in appearance.
Referring to Fig. 6, be another form of the embodiment of the invention, shown in the figure, the surface of base plate 6 is not machined the degree of depth of the edge thickness of slab of getting rid of a semicircle groove shape part 8.Because of a little, the semicircle groove shape part 8 of process of the present invention also is suitable for this version with the rear stirring friction welding seam 9 that produces of base plate 6 welding.
Referring to Fig. 5, be in the prior art with the structural representation after 8 welding of base plate 6 and semicircle groove shape part, as seen from the figure, weld seam 10 is fully on the upper plane of base plate 6.
The stirring friction-welding technique method of semicircle groove shape part of the present invention also can adopt another kind of similarly technical scheme, and is specific as follows:
At first, base plate 6 is placed on workbench 1 or workbench 1 and the backing plate 2, adopt pressing plate and bolt group more than 2 groups that base plate 6 is fixing at the dual-side of base plate 6, the pressing plate that adopts and bolt group are identical with limit, base plate shown in Figure 36 left side.Then, semicircle groove shape part 8 covered place on the base plate 6, adopt method single-point or the multiple spot tack welding of interval weldering with gas metal-arc welding or argon tungsten-arc welding, semicircle groove shape part 8 tentatively is fixed on the base plate.At the semicircle groove shape part 8 on base plate 6 left sides and the overlapping of base plate 6, stirring-head 7 simultaneously along the side lengthwise movement of semicircle groove shape part 8, makes the mixing part of base plate 6 and semicircle groove shape part 8 form a weld seam and finish a bonding wire by its rotation.Again stirring-head 7 is moved on to the overlapping on semicircle groove shape part 8 and base plate 6 the right, stirring-head 7 makes the mixing part of base plate 6 and semicircle groove shape part 8 form a weld seam and finish another bonding wire also by the side lengthwise movement of its rotation while along semicircle groove shape part 8.Adopt at last mach method that the overlap of two weld seams is removed to form weld seam attractive in appearance.
Claims (8)
1. the stirring friction-welding technique method of a semicircle groove shape part is to adopt the method for friction stir welding to finish the welding of semicircle groove shape part on base plate, it is characterized in that comprising the step of following order:
(1) base plate is placed on the workbench, adopt pressing plate and bolt group more than 2 groups that base plate is fixed on the workbench at a side of base plate;
(2) the semicircle groove shape part is covered place on the base plate, adopt pressing plate and bolt group more than 2 groups that the semicircle groove shape part is fixed on the workbench at another side of base plate;
(3) at first, with pressing plate and bolt group base plate is being fixed in the semicircle groove shape part of this side on the workbench and the overlapping of base plate, the welding of employing agitating friction, be that stirring-head passes through its rotation simultaneously along the side lengthwise movement of semicircle groove shape part, make the mixing part of base plate and semicircle groove shape part form a weld seam and finish a bonding wire;
(4) again with fixed base plate and fixedly pressing plate and the exchange of bolt group of semicircle groove shape part, stirring-head is moved on to the semicircle groove shape part of another side and the overlapping of base plate, adopt the agitating friction welding identical with step (3), be that stirring-head passes through its rotation simultaneously along the side lengthwise movement of semicircle groove shape part, make the mixing part of base plate and semicircle groove shape part form a weld seam and finish another bonding wire;
(5) adopt mach method that the overlap of two weld seams is removed to form weld seam attractive in appearance.
2. the stirring friction-welding technique method of semicircle groove shape part according to claim 1 is characterized in that: in the step (1), between base plate and workbench, increase a backing plate.
3. the stirring friction-welding technique method of semicircle groove shape part according to claim 1 and 2, it is characterized in that: in the step (2), the semicircle groove shape part is covered place on the base plate before, base plate contact part with the semicircle groove shape part, be processed as the groove of heavy next semicircle flute profile part edge thickness.
4. the stirring friction-welding technique method of semicircle groove shape part according to claim 3, it is characterized in that: described pressing plate and bolt group comprise the bolt that passes through hole on backing plate and/or the workbench, bolt is threaded connection on pressing plate, pressing plate one end is supported on backing plate or the workbench by gripper shoe, and the other end is pressed on the base plate or the top of semicircle groove shape part.
5. the stirring friction-welding technique method of a semicircle groove shape part is to adopt the method for friction stir welding to finish the welding of semicircle groove shape part on base plate, it is characterized in that comprising the step of following order:
(1) base plate is placed on the workbench, adopt pressing plate and bolt group more than 2 groups that base plate is fixed on the workbench at the dual-side of base plate;
(2) the semicircle groove shape part is covered place on the base plate, adopt method single-point or the multiple spot tack welding of interval weldering with gas metal-arc welding or argon tungsten-arc welding, make the semicircle groove shape part tentatively be fixed on the base plate;
(3) at first, at the semicircle groove shape part of base plate one side and the overlapping of base plate, the welding of employing agitating friction, namely stirring-head simultaneously along the side lengthwise movement of semicircle groove shape part, makes the mixing part of base plate and semicircle groove shape part form a weld seam and finish a bonding wire by its rotation;
(4) again stirring-head is moved on to semicircle groove shape part and the base plate overlapping of another side of base plate, adopt the agitating friction welding identical with step (3), be that stirring-head passes through its rotation simultaneously along the side lengthwise movement of semicircle groove shape part, make the mixing part of base plate and semicircle groove shape part form a weld seam and finish another bonding wire;
(5) adopt mach method that the overlap of two weld seams is removed to form weld seam attractive in appearance.
6. the stirring friction-welding technique method of semicircle groove shape part according to claim 5 is characterized in that: in the step (1), between base plate and workbench, increase a backing plate.
7. according to claim 5 or the stirring friction-welding technique method of 6 described semicircle groove shape parts, it is characterized in that: in the step (2), the semicircle groove shape part is covered place on the base plate before, base plate contact part with the semicircle groove shape part, be processed as the groove of heavy next semicircle flute profile part edge thickness.
8. the stirring friction-welding technique method of semicircle groove shape part according to claim 7, it is characterized in that: described pressing plate and bolt group comprise the bolt that passes through hole on backing plate and/or the workbench, bolt is threaded connection on pressing plate, pressing plate one end is supported on backing plate or the workbench by gripper shoe, and the other end is pressed on the base plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110169882 CN102218593B (en) | 2011-06-22 | 2011-06-22 | Friction stir welding process method for half slot part |
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| CN 201110169882 CN102218593B (en) | 2011-06-22 | 2011-06-22 | Friction stir welding process method for half slot part |
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| CN102218593B true CN102218593B (en) | 2013-03-06 |
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| CN114102159A (en) * | 2021-11-29 | 2022-03-01 | 天津航天长征火箭制造有限公司 | Milling and welding integrated device and welding method for spherical crown bottom melon petal and closed-loop flange |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920396A (en) * | 2009-06-12 | 2010-12-22 | 三菱重工业株式会社 | Cooling plate and manufacturing method therefor |
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| JP3818084B2 (en) * | 2000-12-22 | 2006-09-06 | 日立電線株式会社 | Cooling plate and manufacturing method thereof, and sputtering target and manufacturing method thereof |
| JP3538419B2 (en) * | 2002-08-20 | 2004-06-14 | 川崎重工業株式会社 | Friction stir welding equipment |
| US7032800B2 (en) * | 2003-05-30 | 2006-04-25 | General Electric Company | Apparatus and method for friction stir welding of high strength materials, and articles made therefrom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101920396A (en) * | 2009-06-12 | 2010-12-22 | 三菱重工业株式会社 | Cooling plate and manufacturing method therefor |
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| JP特开2004-358556A 2004.12.24 |
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