CN104014927B - The welding method of a kind of non-crystaline amorphous metal and nut - Google Patents
The welding method of a kind of non-crystaline amorphous metal and nut Download PDFInfo
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- CN104014927B CN104014927B CN201410255202.0A CN201410255202A CN104014927B CN 104014927 B CN104014927 B CN 104014927B CN 201410255202 A CN201410255202 A CN 201410255202A CN 104014927 B CN104014927 B CN 104014927B
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/14—Preventing or minimising gas access, or using protective gases or vacuum during welding
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Abstract
The present invention relates to non-crystaline amorphous metal technical field, particularly relate to the welding method of a kind of non-crystaline amorphous metal and nut, comprise non-crystaline amorphous metal base material and nut, under inert atmosphere protection, adopt whirligig drive nut rotation and press to non-crystaline amorphous metal base material with certain rotary speed and feed rate, and make nut and non-crystaline amorphous metal base material frictional heat, so that more than non-crystaline amorphous metal base material reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material enters supercooling liquid phase region or melting (more than fusing point) state of viscous, and then engage with nut, non-crystaline amorphous metal base material be provided with for the groove of nut-welding, whirligig is provided with the protective gas nozzle that inert atmosphere is blowed to non-crystaline amorphous metal base material. the present invention realizes engaging of non-crystaline amorphous metal and nut, solves the problem that non-crystaline amorphous metal is difficult to tapping, significantly expands the range of application of non-crystaline amorphous metal. engaging force between non-crystaline amorphous metal and nut is high, and the quality on welding region surface is high.
Description
Technical field
The present invention relates to non-crystaline amorphous metal technical field, particularly relate to the welding method of a kind of non-crystaline amorphous metal and nut.
Background technology
Non-crystaline amorphous metal is because having the good characteristic of the aspects such as intensity, hardness, toughness, wearability, corrosion resistance, soft magnetism and superconductivity, and it has all obtained application in fields such as electronics, machinery, chemical industry.
But, although non-crystaline amorphous metal has good characteristic described above, there is difficult processing, hard-to-weld shortcoming, thereby greatly limited its range of application. Therefore, technological difficulties that are welded into non-crystaline amorphous metal application extension of non-crystaline amorphous metal.
In actual applications, mainly adopt binder to connect being connected between non-crystaline amorphous metal and crystal metal. But the bonding strength that some product needed is stronger, adopts adhesive to connect the bonding strength that just can not meet these products. In addition, owing to being difficult to realize tapping technique on amorphous alloy material, make to be difficult to realize on non-crystaline amorphous metal product the structure of bolt, nut, and, if employing adhesive is by bolt, nut bonding connection on non-crystaline amorphous metal product, its bonding strength can not meet the needs of production. Therefore, need badly and solve the problem that non-crystaline amorphous metal product is difficult to realize tapping, significantly to expand the range of application of non-crystaline amorphous metal.
Summary of the invention
The object of the invention is to provide for weak point of the prior art the welding method of a kind of non-crystaline amorphous metal and nut.
For achieving the above object, the present invention is achieved through the following technical solutions.
The welding method of a kind of non-crystaline amorphous metal and nut is provided, comprise non-crystaline amorphous metal base material and nut, adopt whirligig drive described nut rotation and press to described non-crystaline amorphous metal base material with certain rotary speed and feed rate, and make described nut and described non-crystaline amorphous metal base material frictional heat, so that more than described non-crystaline amorphous metal base material reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, described non-crystaline amorphous metal base material enters viscous or molten condition, then under inert atmosphere protection, described non-crystaline amorphous metal base material engages with described nut;
Described non-crystaline amorphous metal base material be provided with for the groove of described nut-welding;
Described whirligig is provided with protective gas nozzle, and described inert atmosphere blows to described non-crystaline amorphous metal base material with certain blow gas pressure from described protective gas nozzle.
Described non-crystaline amorphous metal base material offers two described grooves, the width of rebate value of two described grooves all with external diameter and the internal diameter of described nut between difference equate; Welding process in, the notch of two described grooves respectively just the position between external diameter and the internal diameter to described nut engage.
Preferably, two described grooves are all set to " V " type.
Preferably, two described grooves are all set to isosceles trapezoid, and the upper base length of described isosceles trapezoid is greater than the length of going to the bottom.
Described non-crystaline amorphous metal base material is provided with at least two structures with draft angle, and described groove is described in two, to have the groove forming between the structure of draft angle; The external diameter of described nut is greater than the bottom land width of described groove, and is less than the width of rebate of described groove.
Described rotary speed is 1700rpm ~ 2500rpm, and described feed rate is 15mm/min ~ 25mm/min.
Described blow gas pressure is 0.1MPa ~ 1MPa.
Described whirligig is also provided with rotary drive mechanism, and drives with described rotary drive mechanism the rotating shaft being connected; Described protective gas nozzle cage is located at the upper end of described rotating shaft.
Described nut sleeve is located at the bottom of described rotating shaft.
Described inert atmosphere is inert gas or nitrogen.
Beneficial effect of the present invention:
(1) welding method of a kind of non-crystaline amorphous metal provided by the invention and nut, has realized engaging of non-crystaline amorphous metal and nut, has solved the problem that non-crystaline amorphous metal is difficult to tapping, thereby has significantly expanded the range of application of non-crystaline amorphous metal.
(2) welding method of a kind of non-crystaline amorphous metal provided by the invention and nut, engaging force between non-crystaline amorphous metal and nut is high, more than the tensile strength of the weld between non-crystaline amorphous metal and nut reaches 180MPa, illustrate that the weld between non-crystaline amorphous metal and nut has good tensile strength, and, non-crystaline amorphous metal after welding still keeps non crystalline structure, and in welding process, crystallization does not occur non-crystaline amorphous metal.
(3) welding method of a kind of non-crystaline amorphous metal provided by the invention and nut; due in the process of welding; adopt inert atmosphere to protect non-crystaline amorphous metal; avoid non-crystaline amorphous metal to be easily oxidized (non-crystaline amorphous metal is generally 400 DEG C of above easily oxidations) because frictional heat makes excess Temperature; and this inert atmosphere can make the quality on welding region surface high.
(4) welding method of a kind of non-crystaline amorphous metal provided by the invention and nut; there is welding parameter (welding parameter comprises kind and the blow gas pressure of rotary speed, feed rate, protective gas) range of choice widely; the parameter range of choice of welding conditions is larger; be that the suffered restriction of welding condition is smaller; in welding process; taking TTT figure as benchmark; as long as heating and cooling process does not touch crystallization region; be that non-crystaline amorphous metal does not occur to complete welding under the situation of crystallization, multiple welding parameter all can reach good engaging force and welding quality.
(5) welding method of a kind of non-crystaline amorphous metal provided by the invention and nut, due to by wanting the position of welded nut to process groove at non-crystaline amorphous metal in advance, this groove can make the engaging force intensity between non-crystaline amorphous metal and nut large.
(6) welding method of a kind of non-crystaline amorphous metal provided by the invention and nut, has method simple, can be applicable to the feature of large-scale production.
Brief description of the drawings
Fig. 1 is the non-crystaline amorphous metal base material of embodiment 1,2 and 3 of the welding method of a kind of non-crystaline amorphous metal of the present invention and nut and the structural representation of nut-welding.
Fig. 2 is the non-crystaline amorphous metal base material of embodiment 4 and 5 of the welding method of a kind of non-crystaline amorphous metal of the present invention and nut and the structural representation of nut-welding.
Fig. 3 is the non-crystaline amorphous metal base material of embodiment 6 of the welding method of a kind of non-crystaline amorphous metal of the present invention and nut and the structural representation of nut-welding.
Fig. 4 is the TTT figure of the welding method of a kind of non-crystaline amorphous metal of the present invention and nut.
In Fig. 1 to Fig. 4, include:
1---non-crystaline amorphous metal base material, 11---groove, 12---has the structure, 101 of draft angle---draft angle,
2---nut,
3---whirligig, 31---protective gas nozzle, 32---rotary drive mechanism, 33---rotating shaft,
4---crystallization region,
5---non-crystallization region.
Detailed description of the invention
For the ease of those skilled in the art's understanding, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
The Tg temperature of mentioning in the present invention refers to glass transition temperature, and Tx temperature refers to crystallization temperature, and Tm temperature refers to melting temperature.
The inert gas of mentioning in the present invention comprises helium, neon, argon gas, Krypton and xenon.
TTT figure of the present invention refers to temperature-time transformation diagram, and TTT of the present invention schemes as shown in Figure 4. Supercooling liquid phase region more than heating curves reaches Tg temperature and below Tx temperature or Tm(fusing point) more than after carry out coolingly, and heating curves and cooling curve all can not touch crystallization region 4. Wherein, in welding process, only otherwise touch crystallization region 4, non-crystaline amorphous metal base material 1 does not occur to complete welding under the situation of crystallization, in non-crystallization region 5, select welding parameter all can, multiple welding parameter all can reach good engaging force and welding quality.
Embodiment 1.
See Fig. 1. A welding method for non-crystaline amorphous metal and nut, comprises non-crystaline amorphous metal base material 1 and nut 2, and the present embodiment non-crystaline amorphous metal base material 1 used is for Zr-Cu-Ni-Al-Nb is associated gold, and the material of nut 2 used is carbon steel.
Adopt whirligig 3 drive nut 2 to rotate with the rotary speed of 2200rpm and the feed rate of 15mm/min and press to non-crystaline amorphous metal base material 1, and make nut 2 and non-crystaline amorphous metal base material 1 frictional heat, so that more than non-crystaline amorphous metal base material 1 reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material 1 enters viscous or molten condition, then under helium protection, non-crystaline amorphous metal base material 1 engages with nut 2;
In the present embodiment, non-crystaline amorphous metal base material 1 offers two grooves 11 for welding with nut 2, the width of rebate value of these two grooves 11 all with external diameter and the internal diameter of nut 2 between difference equate; Welding process in, the notch of two grooves 11 respectively just the position between external diameter and the internal diameter to nut 2 engage. And two grooves 11 of the present embodiment are all set to " V " type.
Whirligig 3 is provided with protective gas nozzle 31, and helium blows to non-crystaline amorphous metal base material 1 with the blow gas pressure of 0.2MPa from protective gas nozzle 31.
Wherein, whirligig 3 is also provided with rotary drive mechanism 32, and drives with rotary drive mechanism 32 rotating shaft 33 being connected; Protective gas nozzle 31 is sheathed on the upper end of rotating shaft 33. In the process of welding; because nut 2 and non-crystaline amorphous metal base material 1 frictional heat make temperature rise; the helium that blows to non-crystaline amorphous metal base material 1 from protective gas nozzle 31 can avoid non-crystaline amorphous metal to be easily oxidized because frictional heat makes excess Temperature; and this helium can make the quality on welding region surface high.
Before welding, nut 2 is sheathed on the bottom of rotating shaft 33, and rotating shaft 33 drives nut 2 to rotate and presses to non-crystaline amorphous metal base material 1, and makes nut 2 and non-crystaline amorphous metal base material 1 frictional heat.
Embodiment 2.
See Fig. 1. A welding method for non-crystaline amorphous metal and nut, comprises non-crystaline amorphous metal base material 1 and nut 2, and the present embodiment non-crystaline amorphous metal base material 1 used is for Zr-Cu-Ni-Al-Nb is associated gold, and the material of nut 2 used is stainless steel.
Adopt whirligig 3 drive nut 2 to rotate with the rotary speed of 2000rpm and the feed rate of 20mm/min and press to non-crystaline amorphous metal base material 1, and make nut 2 and non-crystaline amorphous metal base material 1 frictional heat, so that more than non-crystaline amorphous metal base material 1 reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material 1 enters viscous or molten condition, then under neon protection, non-crystaline amorphous metal base material 1 engages with nut 2;
In the present embodiment, non-crystaline amorphous metal base material 1 offers two grooves 11 for welding with nut 2, the width of rebate value of these two grooves 11 all with external diameter and the internal diameter of nut 2 between difference equate; Welding process in, the notch of two grooves 11 respectively just the position between external diameter and the internal diameter to nut 2 engage. And two grooves 11 of the present embodiment are all set to " V " type.
Whirligig 3 is provided with protective gas nozzle 31, and neon blows to non-crystaline amorphous metal base material 1 with the blow gas pressure of 1MPa from protective gas nozzle 31.
Wherein, whirligig 3 is also provided with rotary drive mechanism 32, and drives with rotary drive mechanism 32 rotating shaft 33 being connected; Protective gas nozzle 31 is sheathed on the upper end of rotating shaft 33. In the process of welding; because nut 2 and non-crystaline amorphous metal base material 1 frictional heat make temperature rise; the neon that blows to non-crystaline amorphous metal base material 1 from protective gas nozzle 31 can avoid non-crystaline amorphous metal to be easily oxidized because frictional heat makes excess Temperature; and this neon can make the quality on welding region surface high.
Before welding, nut 2 is sheathed on the bottom of rotating shaft 33, and rotating shaft 33 drives nut 2 to rotate and presses to non-crystaline amorphous metal base material 1, and makes nut 2 and non-crystaline amorphous metal base material 1 frictional heat.
Embodiment 3.
See Fig. 1. A welding method for non-crystaline amorphous metal and nut, comprises non-crystaline amorphous metal base material 1 and nut 2, and the present embodiment non-crystaline amorphous metal base material 1 used is for Zr-Cu-Ni-Al-Nb is associated gold, and the material of nut 2 used is copper.
Adopt whirligig 3 drive nut 2 to rotate with the rotary speed of 1800rpm and the feed rate of 18mm/min and press to non-crystaline amorphous metal base material 1, and make nut 2 and non-crystaline amorphous metal base material 1 frictional heat, so that more than non-crystaline amorphous metal base material 1 reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material 1 enters viscous or molten condition, then under argon shield, non-crystaline amorphous metal base material 1 engages with nut 2;
In the present embodiment, non-crystaline amorphous metal base material 1 offers two grooves 11 for welding with nut 2, the width of rebate value of these two grooves 11 all with external diameter and the internal diameter of nut 2 between difference equate; Welding process in, the notch of two grooves 11 respectively just the position between external diameter and the internal diameter to nut 2 engage. And two grooves 11 of the present embodiment are all set to " V " type.
Whirligig 3 is provided with protective gas nozzle 31, and argon gas blows to non-crystaline amorphous metal base material 1 with the blow gas pressure of 0.5MPa from protective gas nozzle 31.
Wherein, whirligig 3 is also provided with rotary drive mechanism 32, and drives with rotary drive mechanism 32 rotating shaft 33 being connected; Protective gas nozzle 31 is sheathed on the upper end of rotating shaft 33. In the process of welding; because nut 2 and non-crystaline amorphous metal base material 1 frictional heat make temperature rise; the argon gas that blows to non-crystaline amorphous metal base material 1 from protective gas nozzle 31 can avoid non-crystaline amorphous metal to be easily oxidized because frictional heat makes excess Temperature; and this argon gas can make the quality on welding region surface high.
Before welding, nut 2 is sheathed on the bottom of rotating shaft 33, and rotating shaft 33 drives nut 2 to rotate and presses to non-crystaline amorphous metal base material 1, and makes nut 2 and non-crystaline amorphous metal base material 1 frictional heat.
Embodiment 4.
See Fig. 2. A welding method for non-crystaline amorphous metal and nut, comprises non-crystaline amorphous metal base material 1 and nut 2, and the present embodiment non-crystaline amorphous metal base material 1 used is for Cu-Ti-Zr-Ni is associated gold, and the material of nut 2 used is copper.
Adopt whirligig 3 drive nut 2 to rotate with the rotary speed of 1700rpm and the feed rate of 25mm/min and press to non-crystaline amorphous metal base material 1, and make nut 2 and non-crystaline amorphous metal base material 1 frictional heat, so that more than non-crystaline amorphous metal base material 1 reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material 1 enters viscous or molten condition, then under Krypton protection, non-crystaline amorphous metal base material 1 engages with nut 2;
In the present embodiment, non-crystaline amorphous metal base material 1 offers two grooves 11 for welding with nut 2, the width of rebate value of these two grooves 11 all with external diameter and the internal diameter of nut 2 between difference equate; Welding process in, the notch of two grooves 11 respectively just the position between external diameter and the internal diameter to nut 2 engage. And two grooves 11 of the present embodiment are all set to isosceles trapezoid, the upper base length of isosceles trapezoid is greater than the length of going to the bottom.
Whirligig 3 is provided with protective gas nozzle 31, and Krypton blows to non-crystaline amorphous metal base material 1 with the blow gas pressure of 0.1MPa from protective gas nozzle 31.
Wherein, whirligig 3 is also provided with rotary drive mechanism 32, and drives with rotary drive mechanism 32 rotating shaft 33 being connected; Protective gas nozzle 31 is sheathed on the upper end of rotating shaft 33. In the process of welding; because nut 2 and non-crystaline amorphous metal base material 1 frictional heat make temperature rise; the Krypton that blows to non-crystaline amorphous metal base material 1 from protective gas nozzle 31 can avoid non-crystaline amorphous metal to be easily oxidized because frictional heat makes excess Temperature; and this Krypton can make the quality on welding region surface high.
Before welding, nut 2 is sheathed on the bottom of rotating shaft 33, and rotating shaft 33 drives nut 2 to rotate and presses to non-crystaline amorphous metal base material 1, and makes nut 2 and non-crystaline amorphous metal base material 1 frictional heat.
Embodiment 5.
See Fig. 2. A welding method for non-crystaline amorphous metal and nut, comprises non-crystaline amorphous metal base material 1 and nut 2, and the present embodiment non-crystaline amorphous metal base material 1 used is for Cu-Ti-Zr-Ni is associated gold, and the material of nut 2 used is stainless steel.
Adopt whirligig 3 drive nut 2 to rotate with the rotary speed of 2100rpm and the feed rate of 23mm/min and press to non-crystaline amorphous metal base material 1, and make nut 2 and non-crystaline amorphous metal base material 1 frictional heat, so that more than non-crystaline amorphous metal base material 1 reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material 1 enters viscous or molten condition, then under xenon protection, non-crystaline amorphous metal base material 1 engages with nut 2;
In the present embodiment, non-crystaline amorphous metal base material 1 offers two grooves 11 for welding with nut 2, the width of rebate value of these two grooves 11 all with external diameter and the internal diameter of nut 2 between difference equate; Welding process in, the notch of two grooves 11 respectively just the position between external diameter and the internal diameter to nut 2 engage. And two grooves 11 of the present embodiment are all set to isosceles trapezoid, the upper base length of isosceles trapezoid is greater than the length of going to the bottom.
Whirligig 3 is provided with protective gas nozzle 31, and xenon blows to non-crystaline amorphous metal base material 1 with the blow gas pressure of 0.7MPa from protective gas nozzle 31.
Wherein, whirligig 3 is also provided with rotary drive mechanism 32, and drives with rotary drive mechanism 32 rotating shaft 33 being connected; Protective gas nozzle 31 is sheathed on the upper end of rotating shaft 33. In the process of welding; because nut 2 and non-crystaline amorphous metal base material 1 frictional heat make temperature rise; the xenon that blows to non-crystaline amorphous metal base material 1 from protective gas nozzle 31 can avoid non-crystaline amorphous metal to be easily oxidized because frictional heat makes excess Temperature; and this xenon can make the quality on welding region surface high.
Before welding, nut 2 is sheathed on the bottom of rotating shaft 33, and rotating shaft 33 drives nut 2 to rotate and presses to non-crystaline amorphous metal base material 1, and makes nut 2 and non-crystaline amorphous metal base material 1 frictional heat.
Embodiment 6.
See Fig. 3. A welding method for non-crystaline amorphous metal and nut, comprises non-crystaline amorphous metal base material 1 and nut 2, and the present embodiment non-crystaline amorphous metal base material 1 used is for Cu-Ti-Zr-Ni is associated gold, and the material of nut 2 used is carbon steel.
Adopt whirligig 3 drive nut 2 to rotate with the rotary speed of 2500rpm and the feed rate of 22mm/min and press to non-crystaline amorphous metal base material 1, and make nut 2 and non-crystaline amorphous metal base material 1 frictional heat, so that more than non-crystaline amorphous metal base material 1 reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, non-crystaline amorphous metal base material 1 enters viscous or molten condition, then under nitrogen protection, non-crystaline amorphous metal base material 1 engages with nut 2;
In the present embodiment, non-crystaline amorphous metal base material 1 is provided with two structures 12 with draft angle 101, between the structure 12 that two have a draft angle 101, form groove 11, this groove 11 is for welding with nut 2, the external diameter of nut 2 is greater than the bottom land width of this groove 11, and is less than the width of rebate of this groove 11.
Whirligig 3 is provided with protective gas nozzle 31, and nitrogen blows to non-crystaline amorphous metal base material 1 with the blow gas pressure of 0.9MPa from protective gas nozzle 31.
Wherein, whirligig 3 is also provided with rotary drive mechanism 32, and drives with rotary drive mechanism 32 rotating shaft 33 being connected; Protective gas nozzle 31 is sheathed on the upper end of rotating shaft 33. In the process of welding; because nut 2 and non-crystaline amorphous metal base material 1 frictional heat make temperature rise; the nitrogen that blows to non-crystaline amorphous metal base material 1 from protective gas nozzle 31 can avoid non-crystaline amorphous metal to be easily oxidized because frictional heat makes excess Temperature; and this nitrogen can make the quality on welding region surface high.
Before welding, nut 2 is sheathed on the bottom of rotating shaft 33, and rotating shaft 33 drives nut 2 to rotate and presses to non-crystaline amorphous metal base material 1, and makes nut 2 and non-crystaline amorphous metal base material 1 frictional heat.
Performance test.
The product that non-crystaline amorphous metal base material 1 and the nut 2 that above-described embodiment 1 to 6 is obtained welds carries out tested for tensile strength, and table 1 is the tensile strength of the weld of welding product in embodiment 1 to 6.
The tensile strength of the weld of welding product in table 1 embodiment 1 to 6
| Performance test | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Tensile strength (MPa) | 250 | 230 | 185 | 180 | 225 | 240 |
From the data of table 1, the product that non-crystaline amorphous metal base material 1 and the nut 2 that above-described embodiment 1 to 6 obtains welds all has good tensile strength, has illustrated that in above-described embodiment 1 to 6, non-crystaline amorphous metal base material 1 is strong with the engaging force of nut 2.
Finally should be noted that; above embodiment is only for illustrating technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. the welding method of a non-crystaline amorphous metal and nut, it is characterized in that: comprise non-crystaline amorphous metal base material and nut, adopt whirligig drive described nut rotation and press to described non-crystaline amorphous metal base material with certain rotary speed and feed rate, and make described nut and described non-crystaline amorphous metal base material frictional heat, so that more than described non-crystaline amorphous metal base material reaches the above and supercooling liquid phase region below Tx temperature of Tg temperature or reaches Tm temperature, described non-crystaline amorphous metal base material enters viscous or molten condition, then under inert atmosphere protection, described non-crystaline amorphous metal base material engages with described nut,
Described non-crystaline amorphous metal base material be provided with for the groove of described nut-welding;
Described whirligig is provided with protective gas nozzle, and described inert atmosphere blows to described non-crystaline amorphous metal base material with certain blow gas pressure from described protective gas nozzle.
2. the welding method of a kind of non-crystaline amorphous metal according to claim 1 and nut, it is characterized in that: described non-crystaline amorphous metal base material offers two described grooves, the width of rebate value of two described grooves all with external diameter and the internal diameter of described nut between difference equate; Welding process in, the notch of two described grooves respectively just the position between external diameter and the internal diameter to described nut engage.
3. the welding method of a kind of non-crystaline amorphous metal according to claim 2 and nut, is characterized in that: two described grooves are all set to " V " type.
4. the welding method of a kind of non-crystaline amorphous metal according to claim 2 and nut, is characterized in that: two described grooves are all set to isosceles trapezoid, and the upper base length of described isosceles trapezoid is greater than the length of going to the bottom.
5. the welding method of a kind of non-crystaline amorphous metal according to claim 1 and nut, is characterized in that: described non-crystaline amorphous metal base material is provided with at least two structures with draft angle, and described groove is described in two, to have the groove forming between the structure of draft angle; The external diameter of described nut is greater than the bottom land width of described groove, and is less than the width of rebate of described groove.
6. the welding method of a kind of non-crystaline amorphous metal according to claim 1 and nut, is characterized in that: described rotary speed is 1700rpm ~ 2500rpm, and described feed rate is 15mm/min ~ 25mm/min.
7. the welding method of a kind of non-crystaline amorphous metal according to claim 1 and nut, is characterized in that: described blow gas pressure is 0.1MPa ~ 1MPa.
8. the welding method of a kind of non-crystaline amorphous metal according to claim 1 and nut, is characterized in that: described whirligig is also provided with rotary drive mechanism, and drives with described rotary drive mechanism the rotating shaft being connected; Described protective gas nozzle cage is located at the upper end of described rotating shaft.
9. the welding method of a kind of non-crystaline amorphous metal according to claim 8 and nut, is characterized in that: described nut sleeve is located at the bottom of described rotating shaft.
10. the welding method of a kind of non-crystaline amorphous metal according to claim 1 and nut, is characterized in that: described inert atmosphere is inert gas or nitrogen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255202.0A CN104014927B (en) | 2014-06-10 | 2014-06-10 | The welding method of a kind of non-crystaline amorphous metal and nut |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255202.0A CN104014927B (en) | 2014-06-10 | 2014-06-10 | The welding method of a kind of non-crystaline amorphous metal and nut |
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| Publication Number | Publication Date |
|---|---|
| CN104014927A CN104014927A (en) | 2014-09-03 |
| CN104014927B true CN104014927B (en) | 2016-05-11 |
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