CN103056485A - Method for fully welding two surfaces of metal part - Google Patents
Method for fully welding two surfaces of metal part Download PDFInfo
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- CN103056485A CN103056485A CN2013100168154A CN201310016815A CN103056485A CN 103056485 A CN103056485 A CN 103056485A CN 2013100168154 A CN2013100168154 A CN 2013100168154A CN 201310016815 A CN201310016815 A CN 201310016815A CN 103056485 A CN103056485 A CN 103056485A
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Abstract
The invention relates to a method for welding a metal part, in particular to a method for fully welding two surfaces of a metal part. The method is used for fully welding two surfaces of each of cylindrical metal parts made of two different types of materials. The method includes a welded joint forming procedure, a welding procedure and a grinding procedure. The method has the advantages that a qualified rate of products is increased, and the service life of each part in a high-speed rotation state is prolonged.
Description
Technical field
The present invention relates to the metal parts welding method, particularly the full up welding method in a kind of metal parts two sides.
Background technology
Existing welding manner is single-sided welding, and part 1 diameter dimension strengthens, and the outside is opened large groove from suit location, part 2 the insides and welded.The single-sided welding of this mode easily produces the defectives such as commissure crackle, pore, lack of penetration, part deformation, when doing the torsional performance experimental test because weld defect causes the part machinery performance reliability not reach requirement.This shows that the full up welding in two sides can significantly improve reliability and the service life of part.
Summary of the invention
The object of the present invention is to provide the full up welding method in a kind of metal parts two sides, mainly for the deficiency that prior art exists, improved the service life of part under the High Rotation Speed state.
For achieving the above object, the present invention realizes like this.
The full up welding method in a kind of metal parts two sides, it is that metal parts to two kinds of different materials carries out the full up welding in two sides under tubular condition; The technique process that it comprises has welding joint shaping operation, welding sequence and polishing operation.
The full up welding method in described metal parts two sides is characterized in that:
1, the inside and outside single V groove with root face that is of the welding point of the first metal parts and the second metal parts in the welding joint shaping operation, the angle a of inside and outside groove of the second metal parts is 45 °, width of root face H is 0.6-1mm.The angle b of the inside and outside groove of the first metal parts is 45 °, and width of root face H1 is 2mm; Two part gap B are 0.3-0.5mm.
2, welding sequence is divided into outer, interior twice welding; In the welding sequence, welding torch position is the vertical center line of circular weld outside, and rotary table is rotated counterclockwise 360 °, and welding gun height distance weld bead height is 10-12mm; In the interior welding sequence, need and will be clamped on the frock after the part counter-rotating, welding gun is the vertical center line of circular weld, and rotary table is rotated counterclockwise 360 °, and it is 12-15mm that the welding gun height is followed from weld bead height, the control appearance of weld.
3, described different materials part, the first metal parts adopts the 10# Steel material, and the second metal parts adopts the 45# Steel material.
The advantage of the inventive method is: the present invention has controlled the gross distortion of part, ensures enough fusion penetrations, guarantees the outward appearance of appearance of weld, thereby guarantees the welding quality of part, improves and produces product percent of pass.
Description of drawings
Fig. 1 is process chart of the present invention.
Fig. 2 is welding shape opening schematic diagram of the present invention.
Fig. 3 is external welding shape schematic diagram of the present invention.
Fig. 4 is welding shape schematic diagram in the present invention.
The specific embodiment
The invention discloses the full up welding method in a kind of metal parts two sides, it is characterized in that: it is that metal parts to two kinds of different materials carries out the full up welding procedure in two sides under tubular condition, and it includes welding joint shaping operation, welding sequence and polishing operation.
Below further introduce the present invention by an example:
Show that such as Fig. 1-4 the first metal parts is that 10# Steel material 1 and the second metal parts are the full up welding procedure in two sides of 45# Steel material 2, its technological process of production is seen Fig. 1.
The inside and outside single V groove with root face that is of welding point at the 10# steel described in the welding joint shaping operation of two sides and 45# steel.The angle a of 2 inside and outside grooves of part is 45 °, and width of root face H is 0.6-1mm; The angle b of part 1 inside and outside groove is 45 °, and width of root face H1 is 2mm.Two part gap B are 0.3-0.5mm.
In welding sequence, be divided into outer, interior twice welding.In the welding sequence, part 1 is enclosed within on the profiling fixture outside, and part 2 is placed on the profiling fixture take endoporus as positioning datum and keeps the gap of B between two parts to be 0.3-0.5mm.Welding torch position was the vertical center line of circular weld after two parts clamped, and it is 10-12mm that rotary table is rotated counterclockwise 360 ° of welding gun height distance weld bead heights.Sealing wire speed is 40-50cm/min, and weldingvoltage is 20-25V, and welding current is 175-180A, and gas flow 15-20L/min, gage of wire are 0.8-1.0mm.
Need during interior welds and will be clamped on the chuck frock after the part counter-rotating, welding gun is the vertical center line of circular weld, and rotary table is rotated counterclockwise 360 °, and it is 12-15mm that the welding gun height is followed from weld bead height.Sealing wire speed is 40-50cm/min, and weldingvoltage is 25-30V, and welding current is 180-190A, and gas flow 15-20L/min, gage of wire are 0.8-1.0mm, the control appearance of weld.
In welding polishing operation, use wire brush that inside and outside two sides weld seam is carried out residue and remove, can in time carry out repair welding when finding gas hole defect is arranged, guarantee product quality.
Under the prerequisite that satisfies the final products mechanical performance, use that the present invention carries out that industrial production has that cost is lower, part deformation is little, easy enforcement, product percent of pass high.
Certainly, the metal parts among the present invention is not limited to above-mentioned material, and the metal parts of other different materials carries out the full up welding in two sides under tubular condition all can adopt the inventive method.
Claims (4)
1. full up welding method in metal parts two sides is characterized in that: it is that metal parts to two kinds of different materials carries out the full up welding in two sides under tubular condition; It includes welding joint shaping operation, welding sequence, polishing operation.
2. the full up welding method in metal parts two sides according to claim 1, it is characterized in that: the inside and outside single V groove with root face that is of the welding point of the first metal parts and the second metal parts in the described welding joint shaping operation, the angle a of inside and outside groove of the second metal parts is 45 °, and width of root face H is 0.6-1mm; The angle b of the inside and outside groove of the first metal parts is 45 °, and width of root face H1 is 2mm; Two part gap B are 0.3-0.5mm.
3. the full up welding method in metal parts two sides according to claim 1 and 2 is characterized in that: described welding sequence is divided into outer, interior twice welding; In the welding sequence, welding torch position is the vertical center line of circular weld outside, and rotary table is rotated counterclockwise 360 °, and welding gun height distance weld bead height is 10-12mm; In the interior welding sequence, need and will be clamped on the frock after the part counter-rotating, welding gun is the vertical center line of circular weld, and rotary table is rotated counterclockwise 360 °, and it is 12-15mm that the welding gun height is followed from weld bead height, the control appearance of weld.
4. the full up welding method in metal parts two sides according to claim 1 and 2 is characterized in that: described the first metal parts employing 10# Steel material, the second metal parts employing 45# Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100168154A CN103056485A (en) | 2013-01-17 | 2013-01-17 | Method for fully welding two surfaces of metal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100168154A CN103056485A (en) | 2013-01-17 | 2013-01-17 | Method for fully welding two surfaces of metal part |
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| CN103056485A true CN103056485A (en) | 2013-04-24 |
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| CN2013100168154A Pending CN103056485A (en) | 2013-01-17 | 2013-01-17 | Method for fully welding two surfaces of metal part |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63268569A (en) * | 1987-04-24 | 1988-11-07 | Chiyoda Chem Eng & Constr Co Ltd | Piping arrangement by welding method |
| JP3179194B2 (en) * | 1992-06-29 | 2001-06-25 | 日新製鋼株式会社 | Stainless steel hot water container |
| JP3924235B2 (en) * | 2002-10-16 | 2007-06-06 | 新日本製鐵株式会社 | High fatigue strength fillet welding method for thin steel sheet |
| CN100999036A (en) * | 2006-12-31 | 2007-07-18 | 南京汽车集团有限公司 | Welding technology of bridge shell and spindle nose welding |
-
2013
- 2013-01-17 CN CN2013100168154A patent/CN103056485A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63268569A (en) * | 1987-04-24 | 1988-11-07 | Chiyoda Chem Eng & Constr Co Ltd | Piping arrangement by welding method |
| JP3179194B2 (en) * | 1992-06-29 | 2001-06-25 | 日新製鋼株式会社 | Stainless steel hot water container |
| JP3924235B2 (en) * | 2002-10-16 | 2007-06-06 | 新日本製鐵株式会社 | High fatigue strength fillet welding method for thin steel sheet |
| CN100999036A (en) * | 2006-12-31 | 2007-07-18 | 南京汽车集团有限公司 | Welding technology of bridge shell and spindle nose welding |
Non-Patent Citations (5)
| Title |
|---|
| 宜清源等: "奥氏体不锈钢立罐带钝边X型坡口自动埋弧焊", 《压力容器》, vol. 9, no. 5, 31 October 1992 (1992-10-31) * |
| 王保祥: "大型筒体焊接工艺改进", 《焊接》, no. 12, 31 December 1994 (1994-12-31) * |
| 蔡龙庭: "压力容器焊接坡口设计（上）", 《压力容器》, vol. 4, no. 6, 31 December 1987 (1987-12-31) * |
| 闫蓓蓓等: "浅谈混料机筒体中Q345A与35钢的焊接", 《才智》, no. 31, 5 November 2012 (2012-11-05) * |
| 陈晓姝: "浅谈压力容器的组焊工艺", 《机械工程师》, no. 3, 31 March 2012 (2012-03-31) * |
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Application publication date: 20130424 |