CN112091397A - Amorphous alloy resistance welding method and welding device - Google Patents
Amorphous alloy resistance welding method and welding device Download PDFInfo
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- CN112091397A CN112091397A CN202011054489.2A CN202011054489A CN112091397A CN 112091397 A CN112091397 A CN 112091397A CN 202011054489 A CN202011054489 A CN 202011054489A CN 112091397 A CN112091397 A CN 112091397A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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Abstract
The invention relates to an amorphous alloy resistance welding method, which comprises a welding parent metal and a welding workpiece, wherein the welding parent metal is amorphous alloy, and the welding workpiece is amorphous alloy or a metal piece; firstly, processing a small-diameter section at the connecting end of a welding parent metal, forming a connecting port on a welding workpiece, and inserting the small-diameter section of the welding parent metal into the connecting port of the welding workpiece; then, the welding parent metal and the welding workpiece are respectively connected with the anode and the cathode of a power supply, the power supply discharges, the small-diameter section of the welding parent metal is heated to a supercooled liquid phase region, and the small-diameter section generates superplastic deformation under the condition of no crystallization reaction; and finally, connecting the deformed small-diameter section into the connecting port of the welding workpiece so as to connect the welding parent metal and the welding workpiece. A welding device comprises an upper clamp, wherein a small-diameter section is formed at the lower end of a welding parent metal; the air cylinder is connected with the upper clamp and is suitable for driving the upper clamp to move; and a power source. The connection performance between the welding base metal and the welding workpiece is improved.
Description
Technical Field
The invention relates to the technical field of material welding, in particular to an amorphous alloy resistance welding method and device.
Background
At present, for resistance welding connection of amorphous alloys, there is a problem that the performance of a welded base material and a welded workpiece after welding is unstable, for example, refer to prior patents, patent numbers: 201410379335.9, patent name: a resistance welding method of amorphous alloy; the welding parent metal and the welding workpiece are electrified, the electrodes apply pressure and utilize resistance heat generated by current to respectively heat the amorphous alloy and the welding workpiece to be above respective melting points or reach respective supercooling liquid phase regions, so that the welding workpiece and the amorphous alloy are welded under the condition of no crystallization reaction.
In the electric welding in the comparison document, the whole amorphous alloy welding parent metal is heated, so that the whole temperature of the welding parent metal is increased, and the welding parent metal and a welding workpiece are difficult to be connected together in the actual operation process according to the scheme of the comparison document, so that the connection performance of the welding parent metal and the welding workpiece is not ideal.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the amorphous alloy resistance welding method and the amorphous alloy resistance welding device are provided to solve the problem that the connection performance of the welding base metal and the welding workpiece is not ideal in the process of adopting electric welding in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an amorphous alloy resistance welding method comprises
The welding method comprises the following steps of welding a base metal and a welding workpiece, wherein the welding base metal is amorphous alloy, and the welding workpiece is amorphous alloy or a metal piece;
firstly, processing a small-diameter section at the connecting end of a welding parent metal, forming a connecting port on a welding workpiece, and inserting the small-diameter section of the welding parent metal into the connecting port of the welding workpiece;
then, the welding parent metal and the welding workpiece are respectively connected with the anode and the cathode of a power supply, the power supply discharges, the small-diameter section of the welding parent metal is heated to a supercooled liquid phase region, and the small-diameter section generates superplastic deformation under the condition of no crystallization reaction;
and finally, connecting the deformed small-diameter section into the connecting port of the welding workpiece so as to connect the welding parent metal and the welding workpiece.
Furthermore, the connecting opening structure of the welding base metal is in a dovetail shape, and the deformed small-diameter section is located in the dovetail groove so as to limit the welding base metal to separate.
Furthermore, the connecting opening structure of the welding parent metal is in an inverted T shape, and the deformed small-diameter section is positioned in the T-shaped groove so as to limit the separation of the welding parent metal.
Furthermore, a plurality of annular radial grooves are respectively formed in the inner side wall of the connecting port of the welding parent metal, and the deformed small-diameter section is located in each annular radial groove so as to limit the welding parent metal from separating.
Further, the welding parent metal is one of zirconium-based amorphous alloy, titanium-based amorphous alloy, nickel-based amorphous alloy and copper-based amorphous alloy;
when the welding workpiece is an amorphous alloy, one of a zirconium-based amorphous alloy, a titanium-based amorphous alloy, a nickel-based amorphous alloy and a copper-based amorphous alloy is selected;
when the welding workpiece is a metal piece, one of steel materials, copper alloys, aluminum alloys and titanium alloys is selected.
In a second aspect:
a welding device comprises
The upper clamp is suitable for clamping the upper end of a welding base metal, and the lower end of the welding base metal forms a small-diameter section;
the lower clamp is suitable for clamping a welding workpiece, and a connecting hole is formed in the upper end of the welding workpiece;
the air cylinder is connected with the upper clamp and is suitable for driving the upper clamp to move; and
and the positive electrode and the negative electrode of the power supply are respectively connected to the welding parent metal and the welding workpiece.
Furthermore, the connecting opening structure of the welding base metal is in a dovetail shape, and the deformed small-diameter section is located in the dovetail groove so as to limit the welding base metal to separate.
Furthermore, the connecting opening structure of the welding parent metal is in an inverted T shape, and the deformed small-diameter section is positioned in the T-shaped groove so as to limit the separation of the welding parent metal.
Furthermore, a plurality of annular radial grooves are respectively formed in the inner side wall of the connecting port of the welding parent metal, and the deformed small-diameter section is located in each annular radial groove so as to limit the welding parent metal from separating.
Further, an insulating gasket is arranged between the upper clamp and the cylinder.
The invention has the beneficial effects that:
the invention provides an amorphous alloy resistance welding method, which depends on a small-diameter section formed on an amorphous alloy welding parent metal, under the condition of switching on a power supply, a part with a small sectional area generates larger resistance, so that the part generates superplastic deformation under the condition of not generating crystallization reaction, and the deformed welding parent metal is positioned in a connecting hole of a welding workpiece, thereby realizing the connection between the welding parent metal and the welding workpiece and improving the connection performance between the welding parent metal and the welding workpiece.
The welding device provided simultaneously can ensure that welding parent metal and welding workpiece realize stable spot welding connection, and improves convenience and safety of welding operation.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a welding apparatus;
FIG. 2 is a first connecting structure between a welding parent metal and a welding workpiece;
FIG. 3 is a second connection structure between the welding parent metal and the welding workpiece;
FIG. 4 is a third connection structure between the welding parent metal and the welding workpiece;
FIG. 5 is a metallographic picture of a welding parent metal after being joined to a welding workpiece;
the welding fixture comprises a cylinder 1, a cylinder 2, an insulating gasket 3, an upper fixture 4, a welding base metal 5, a welding workpiece 6 and a lower fixture.
Detailed Description
The invention will now be further described with reference to specific examples. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example one
The amorphous alloy resistance welding method comprises a welding parent metal 4 and a welding workpiece 5, wherein the welding parent metal 4 is amorphous alloy, and the welding workpiece 5 is amorphous alloy or a metal piece;
firstly, processing a small-diameter section at the connecting end of a welding parent metal 4, forming a connecting port on a welding workpiece 5, and inserting the small-diameter section of the welding parent metal 4 into the connecting port of the welding workpiece 5;
then, the welding parent metal 4 and the welding workpiece 5 are respectively connected with the anode and the cathode of a power supply, the power supply discharges electricity, the diameter of the small-diameter section is small, compared with the other places of the welding parent metal 4, the resistance is larger, the heat is easier to generate, the temperature of the small-diameter section of the welding parent metal 4 is raised to a supercooled liquid phase area, and the small-diameter section generates superplastic deformation under the condition that crystallization reaction does not occur;
finally, the deformed small-diameter section is connected in the connecting port of the welding workpiece 5 to connect the welding parent metal 4 and the welding workpiece 5.
Specifically, in the present embodiment, the connection opening structure of the welding base material 4 is a dovetail shape, and as shown in fig. 2, the deformed small diameter section is located in a dovetail groove so as to restrict the welding base material 4 from coming off.
Specifically, in the present embodiment, the connection opening structure of the welding parent metal 4 is an inverted T shape, and as shown in fig. 3, the deformed small diameter section is located in a T-shaped groove so as to restrict the welding parent metal 4 from coming off.
Specifically, in this embodiment, a plurality of annular radial grooves are provided on the inner side wall of the connection port of the welding parent metal 4, and as shown in fig. 4, the deformed small diameter section is located in each annular radial groove so as to restrict the welding parent metal 4 from coming off. After welding as shown in fig. 5.
Further, the welding parent metal is one of zirconium-based amorphous alloy, titanium-based amorphous alloy, nickel-based amorphous alloy and copper-based amorphous alloy;
such as: zirconium-based amorphous Zr41.2Ti13.8Cu12.5Ni10Be22.5, Zr34Ti15Cu10Ni11Be28Y 2;
titanium-based amorphous Ti50Cu20Ni24Si4B 2;
nickel-based amorphous Ni40Cu5Ti16.5Zr28.5Al10;
copper-based amorphous Cu46Zr42Al7Y 5.
When the welding workpiece is amorphous alloy, one of zirconium-based amorphous alloy, titanium-based amorphous alloy, nickel-based amorphous alloy and copper-based amorphous alloy is selected
When the welding workpiece is a metal piece, one of steel materials, copper alloys, aluminum alloys and titanium alloys is selected.
Example two
As shown in FIGS. 1 to 4, a welding apparatus for spot-welding a welding parent metal 4 and a welding workpiece 5 includes
The upper clamp 3 is suitable for clamping the upper end of a welding parent metal 4, and a small-diameter section is formed at the lower end of the welding parent metal 4;
and the lower clamp 6 is suitable for clamping a welding workpiece 5, and a connecting hole is formed in the upper end of the welding workpiece 5.
The device comprises an air cylinder 1, wherein the air cylinder 1 is connected with an upper clamp 3 and is suitable for driving the upper clamp 3 to move; and
and a power supply, wherein the positive electrode and the negative electrode of the power supply are respectively connected to the welding parent metal 4 and the welding workpiece 5.
The most common anchor clamps in the industry can be selected for the structure of anchor clamps, and upper and lower anchor clamps are just enough to stably grasp the sample, also different with the different anchor clamps according to the sample appearance, for example the sample is the rod, and anchor clamps are exactly 2 semicircle orifices and are held the sample together.
Specifically, in the present embodiment, the connection opening structure of the welding base material 4 is a dovetail shape, and the deformed small diameter section is located in the dovetail groove, as shown in fig. 2, so as to restrict the welding base material 4 from coming off.
Specifically, in the present embodiment, the connection opening structure of the welding parent metal 4 is an inverted T shape, and as shown in fig. 3, the deformed small diameter section is located in a T-shaped groove so as to restrict the welding parent metal 4 from coming off.
Specifically, in this embodiment, a plurality of annular radial grooves are provided on the inner side wall of the connection port of the welding parent metal 4, and as shown in fig. 4, the deformed small diameter section is located in each annular radial groove so as to restrict the welding parent metal 4 from coming off.
Specifically, in this embodiment, an insulating gasket 2 is disposed between the upper jig 3 and the cylinder 1.
During operation, a welding workpiece 5 is arranged on a lower clamp 6, a welding parent metal 4 is arranged on an upper clamp 3, then a cylinder 1 is operated, a small-diameter section of the welding parent metal 4 extends into a connecting port of the welding workpiece 5, the anode of a power supply is connected with the welding parent metal 4, the welding workpiece 5 is connected with the cathode of the power supply, the small-diameter section of the welding parent metal 4 is small in sectional area and large in resistance, and the small-diameter section generates superplastic deformation under the condition that crystallization reaction does not occur; the deformed portion enters into a connecting port such as a dovetail groove, a T-shaped groove, a radial groove, so that the welding parent metal 4 and the welding workpiece 5 can be connected together.
The welding fixture can ensure that the welding parent metal 4 and the welding workpiece 5 are connected in a stable spot welding mode, and the convenience and the safety of welding operation are improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An amorphous alloy resistance welding method is characterized by comprising
The welding method comprises the following steps of welding a base metal and a welding workpiece, wherein the welding base metal is amorphous alloy, and the welding workpiece is amorphous alloy or a metal piece;
firstly, processing a small-diameter section at the connecting end of a welding parent metal, forming a connecting port on a welding workpiece, and inserting the small-diameter section of the welding parent metal into the connecting port of the welding workpiece;
then, the welding parent metal and the welding workpiece are respectively connected with the anode and the cathode of a power supply, the power supply discharges, the small-diameter section of the welding parent metal is heated to a supercooled liquid phase region, and the small-diameter section generates superplastic deformation under the condition of no crystallization reaction;
and finally, connecting the deformed small-diameter section into the connecting port of the welding workpiece so as to connect the welding parent metal and the welding workpiece.
2. The resistance welding method of an amorphous alloy as set forth in claim 1,
the connecting port structure of the welding parent metal is in a dovetail shape, and the deformed small-diameter section is located in the dovetail groove so as to limit the welding parent metal from separating.
3. The resistance welding method of an amorphous alloy as set forth in claim 1,
the connecting opening structure of the welding parent metal is in an inverted T shape, and the deformed small-diameter section is located in the T-shaped groove so as to limit the welding parent metal from separating.
4. The resistance welding method of an amorphous alloy as set forth in claim 1,
and a plurality of annular radial grooves are respectively arranged on the inner side wall of the connecting port of the welding parent metal, and the deformed small-diameter section is positioned in each annular radial groove so as to limit the welding parent metal from separating.
5. The resistance welding method of an amorphous alloy as set forth in claim 1,
the welding parent metal is one of zirconium-based amorphous alloy, titanium-based amorphous alloy, nickel-based amorphous alloy and copper-based amorphous alloy;
when the welding workpiece is an amorphous alloy, one of a zirconium-based amorphous alloy, a titanium-based amorphous alloy, a nickel-based amorphous alloy and a copper-based amorphous alloy is selected;
when the welding workpiece is a metal piece, one of steel materials, copper alloys, aluminum alloys and titanium alloys is selected.
6. A welding device is characterized by comprising
The upper clamp is suitable for clamping the upper end of a welding base metal, and the lower end of the welding base metal forms a small-diameter section;
the lower clamp is suitable for clamping a welding workpiece, and a connecting hole is formed in the upper end of the welding workpiece;
the air cylinder is connected with the upper clamp and is suitable for driving the upper clamp to move; and
and the positive electrode and the negative electrode of the power supply are respectively connected to the welding parent metal and the welding workpiece.
7. The welding device of claim 6,
the connecting port structure of the welding parent metal is in a dovetail shape, and the deformed small-diameter section is located in the dovetail groove so as to limit the welding parent metal from separating.
8. The welding device of claim 6,
the connecting opening structure of the welding parent metal is in an inverted T shape, and the deformed small-diameter section is located in the T-shaped groove so as to limit the welding parent metal from separating.
9. The welding device of claim 6,
and a plurality of annular radial grooves are respectively arranged on the inner side wall of the connecting port of the welding parent metal, and the deformed small-diameter section is positioned in each annular radial groove so as to limit the welding parent metal from separating.
10. The welding device of claim 6,
an insulating gasket is arranged between the upper clamp and the cylinder.
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| CN202011054489.2A CN112091397A (en) | 2020-09-30 | 2020-09-30 | Amorphous alloy resistance welding method and welding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732478A (en) * | 2021-08-04 | 2021-12-03 | 广东工业大学 | Electric welding forming method for large-size amorphous alloy and block amorphous alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732478A (en) * | 2021-08-04 | 2021-12-03 | 广东工业大学 | Electric welding forming method for large-size amorphous alloy and block amorphous alloy |
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Address after: No.14 factory building, innovation park, 377 Wuyi South Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province, 213000 Applicant after: CHANGZHOU SHIJING LIQUID METAL Co.,Ltd. Address before: No.1-1 factory building of Changzhou science and Education City Intelligent Digital Industrial Park, no.18-65, middle Changwu Road, Wujin District, Changzhou City, Jiangsu Province 213100 Applicant before: CHANGZHOU SHIJING LIQUID METAL Co.,Ltd. |