CN106807870A - A kind of titanium ingot forges broadening process - Google Patents
A kind of titanium ingot forges broadening process Download PDFInfo
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- CN106807870A CN106807870A CN201510846943.0A CN201510846943A CN106807870A CN 106807870 A CN106807870 A CN 106807870A CN 201510846943 A CN201510846943 A CN 201510846943A CN 106807870 A CN106807870 A CN 106807870A
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- titanium
- width
- ingot
- titanium ingot
- titanium base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Abstract
The invention discloses a kind of titanium ingot forging broadening process, it is characterized in that including：The titanium ingot of diameter D is stood upright under forging press, downwards forging and stamping, forging and stamping to the titanium ingot diameter≤1.2D after jumping-up；Titanium ingot after jumping-up is lain on the lower anvil of forging press, makes titanium ingot length-wise axis vertical with press operation axletree line, roll the titanium ingot after jumping-up, control that titanium base width is final tandem rolling titanium base product width in actual production 1.2~1.3 times；Titanium base after laterally rolling is rotated by 90 °, make titanium base length-wise axis and press operation car diameter parallel, one end of the operation car clamping titanium base of forging press carries out longitudinal pulling, alternating is forged and pressed along the thickness direction and width of titanium base, until obtaining the thickness and width for needing, that is, tandem rolling titanium base is obtained.Using the present invention, the tandem rolling titanium base of width >=1.5D can be produced, to meet width >=1500mm tandem rolling titanium bases the need for；Properties of product are good.
Description
Technical field
The invention belongs to non-ferrous metal forging method, it is related to a kind of titanium ingot forging broadening process, it is adaptable to using cylindrical titanium（Including titanium or titanium alloy）The forged production tandem rolling titanium base of ingot（Width is B）.
The key point of invention is to employ laterally to roll to titanium ingot（A diameter of D）Spreaded, the tandem rolling titanium base of width B >=1.5D can be obtained.
Background technology
With the development of technology, every profession and trade requires that width has reached now to the width requirement more and more higher of titanium strip coil
More than 1500mm.The width of titanium volume is identical with the width of tandem rolling titanium base, and this requires to produce the bigger tandem rolling titanium base of width.
In the prior art, the production of tandem rolling titanium base is usually using following forging technology step：Cylinder titanium ingot → jumping-up → longitudinal direction pulling → tandem rolling titanium base, under this technique, there is following relation in titanium base width B and titanium ingot diameter D：B≤1.35D.At present, the titanium ingot diameter D≤1030mm of domestic production, only obtainable titanium base width B≤1390mm, it is impossible to meet actual demand.And when the edge of the width >=1300mm Concasting Blooms produced using the titanium ingot of D=1030mm has loose heavier quality problems, actually only B≤1.25D, the preferable tandem rolling titanium base of quality could be obtained；Because when forging the tandem rolling titanium base of B >=1.25D, because edge deformation amount is small, there are loose tissue defects of Denging in titanium base edge, and result of detection is generally lower 1~2 grade than titanium base middle part.During forging tandem rolling titanium base, because edge deformation amount is small, edge corner angle are generally rounded, and arc radius in follow-up machining, are unfavorable for the removal of property at parts of edges and corners surface defect up to >=10mm.
The content of the invention
The purpose of the present invention is intended to overcome deficiency of the prior art, there is provided a kind of titanium ingot forges broadening process.So as to provide a kind of titanium ingot using existing diameter D, produce the titanium ingot forging broadening process of the tandem rolling titanium base of width B >=1.5D, to meet width B >=1500mm tandem rolling titanium bases the need for.
Technological process of the invention is：Titanium ingot → jumping-up → transverse direction rolls → longitudinal direction pulling → tandem rolling titanium base.
Present disclosure is：A kind of titanium ingot forges broadening process, it is characterized in that comprising the following steps：
A, jumping-up：The titanium ingot of diameter D, length L is taken, titanium ingot is stood upright under forging press, forging press is forged and pressed downwards, the length for making titanium ingot is reduced, diameter increases, forging and stamping to the titanium ingot diameter≤1.2D after jumping-up；Tentatively to expand the width of titanium ingot；
B, transverse direction are rolled：Continue the width of increase titanium base, this is core of the invention；The lower anvil of forging press uses anvil under the big plane of rotatable diameter >=2m（Depending on the lower specific size of anvil can be according to the product size and the mobile work platform size of press for intending forging）；Titanium ingot after jumping-up is lain on the lower anvil of forging press, makes titanium ingot length-wise axis vertical with press operation axletree line；The titanium ingot after jumping-up is rolled, and controls feed（I.e.：The ratio of the length of titanium ingot forging deformation and lower anvil width）≤ 30%, titanium ingot is radially fully spreaded, obtain the titanium base of enough width；Obtainable titanium base width >=3.0D laterally is rolled, control that titanium base width is final tandem rolling titanium base product width in actual production 1.2~1.3 times, to leave enough swaging deformation amounts for final tandem rolling titanium base width；C, longitudinal direction pulling：Obtain the tandem rolling titanium base of final size；The titanium base obtained after laterally rolling is rotated by 90 °, and makes titanium base length-wise axis and press operation car diameter parallel；One end of the operation car clamping titanium base of forging press carries out longitudinal pulling：Alternating is forged and pressed along the thickness direction and width of titanium base, controls feed≤30%, until obtaining the thickness and width for needing（Depending on size according to the tandem rolling titanium base for intending forging）, that is, tandem rolling titanium base product is obtained.
In present disclosure：The diameter D of titanium ingot described in step a can be 300~1030
Mm, length L are generally 3 times of diameter D；Therefore, titanium ingot can only slightly jumping-up, usual decrement（The decrement of titanium ingot height and the ratio of elemental height）≤35%.
Compared with prior art, the present invention has following features and beneficial effect：
（1）Using the present invention, the tandem rolling titanium base of B >=1.5D can be obtained, i.e., using identical titanium ingot, the bigger tandem rolling titanium base of width can be forged；
（2）Using the present invention, the tandem rolling titanium base edge of forging has obtained sufficient swaging deformation during forging, thus with middle part identical tissue, can reach and be detected a flaw rank with middle part identical, the edging tissue of the tandem rolling titanium base of forging is good；
（3）Using the present invention, during forging tandem rolling titanium base, edge has enough deflections, and edge corner angle are close to right angle, arc radius≤3mm, it is easy to which, by machining the surface defect of removal property at parts of edges and corners, the tandem rolling titanium base of forging has more preferable edge angular shape；
（4）Using the present invention, operation is easy, and product quality is good, practical.
Specific embodiment
Example given below is intended so that the invention will be further described; but it is not to be construed as limiting the scope of the invention; some nonessential modifications and adaptations that person skilled in art makes according to the content of the invention described above to the present invention, still fall within protection scope of the present invention.
Embodiment 1：
A kind of titanium ingot forges broadening process, is the tandem rolling titanium base that width B=1050mm is forged into the titanium ingot of diameter D=φ 630mm, B=1.67D；Comprise the following steps：
A, jumping-up：Take diameter D=φ 630mm, length L=2030mm, titanium ingot weight 2850kg, titanium ingot is stood upright under forging press, forging press is forged and pressed downwards, and the length for making titanium ingot is reduced, diameter increases, and is forged and pressed to the titanium ingot diameter phi 770mm after jumping-up, and length is 1360mm；
B, transverse direction are rolled：After titanium ingot jumping-up, the anvil under big plane（φ 2200mm, it is rotatable）On carry out laterally roll, be swaged into width for 1260mm, thickness be 360mm, length for 1400mm titanium base；
C, longitudinal direction pulling：Titanium base after spreading is rotated by 90 °, and carries out longitudinal pulling, and alternating is forged and pressed along thickness and width direction, is finally swaged into width B for 1050mm, and thickness is 120mm, and length is the tandem rolling titanium base product of 5000mm.
Embodiment 2：
A kind of titanium ingot forges broadening process, is the tandem rolling titanium base of the titanium ingot forging width B=1380mm of diameter D=φ 960mm, B=1.44D；Comprise the following steps：
A, jumping-up：Take diameter D=φ 960mm, length L=2720mm, titanium ingot weight 8860kg, titanium ingot is stood upright under forging press, forging press is forged and pressed downwards, and the length for making titanium ingot is reduced, diameter increases, and is forged and pressed to the titanium ingot diameter phi 1175mm after jumping-up, and length is 1815mm；
B, transverse direction are rolled：After titanium ingot jumping-up, the anvil under big plane（φ 2200mm, it is rotatable）On carry out laterally roll, be swaged into width for 1680mm, thickness be 630mm, length for 1850mm titanium base；（2）, edge rolling：By edge rolling in the round mould of 45# round steel material feeding blank forming machine, then cut-out welds in the junction of round steel circle, and dressing burr；
（3）, forging and stamping：The blank that edge rolling is molded is heated to 1200 DEG C, forging forming is then carried out；
（4）, Roughing and fine machining：Blank machine tooling after forging forming is to required size；
（5）, gear hobbing：Machined with gear hobbing, the tooth proportions after processing is met design requirement, and face song chamfering is carried out to tooth form by the way that hydraulic power beveler is complete；
（6）, high-frequency quenching：The high temperature for carrying out 1000 DEG C using High Frequency Solid State impewdance matching stove quenches；
（7）, shaping：Gear ring after high temperature is quenched carries out shaping；
（8）Tempering：Gear ring after shaping is carried out into the temper at 600 DEG C, 2h, natural cooling is incubated；
（9）, post processing:Gear ring after temper is carried out into antirust treatment, and is packed.
C, longitudinal direction pulling：Titanium base after spreading is rotated by 90 °, and carries out longitudinal pulling, and alternating is carried out along thickness and width direction
Forging and stamping, are finally swaged into width B for 1380mm, and thickness is 190mm, and length is the tandem rolling titanium base product of 7500mm.
The technology contents being not specifically delineated in present invention and above-described embodiment are compared with technology.
The invention is not restricted to above-described embodiment, can implement and with the good result described in present invention.Certainly, described above is not limitation of the present invention, the present invention is also not limited to the example above, those skilled in the art, in essential scope of the invention, the change made, remodeling, addition is replaced, should all belong to the present invention it should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, merely illustrating the principles of the invention described in above-described embodiment and specification, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (2)
1. a kind of titanium ingot forges broadening process, it is characterized in that comprising the following steps：
A, jumping-up：The titanium ingot of diameter D, length L is taken, titanium ingot is stood upright under forging press, forging press is forged and pressed downwards, the length for making titanium ingot is reduced, diameter increases, forging and stamping to the titanium ingot diameter≤1.2D after jumping-up；
B, transverse direction are rolled：
The lower anvil of forging press uses anvil under the big plane of rotatable diameter >=2m；Titanium ingot after jumping-up is lain on the lower anvil of forging press, makes titanium ingot length-wise axis vertical with press operation axis；The titanium ingot after jumping-up is rolled, and controls feed≤30%, titanium ingot is radially spreaded；Obtainable titanium base width >=3.0D laterally is rolled, control that titanium base width is final tandem rolling titanium base product width in actual production 1.2~1.3 times；
C, longitudinal direction pulling：The titanium base obtained after laterally rolling is rotated by 90 °, and makes titanium base length-wise axis and press operation car diameter parallel；One end of the operation car clamping titanium base of forging press carries out longitudinal pulling, and alternating is forged and pressed along the thickness direction and width of titanium base, controls feed≤30%, until obtaining the thickness and width for needing, that is, tandem rolling titanium base product is obtained.
2. titanium ingot forges broadening process as described in claim 1, it is characterized in that：The diameter D of titanium ingot described in step a is 3 times that 300~1030 mm, length L are diameter D.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510846943.0A CN106807870A (en) | 2015-11-30 | 2015-11-30 | A kind of titanium ingot forges broadening process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014536A (en) * | 2019-12-04 | 2020-04-17 | 攀钢集团成都钛材有限公司江油分公司 | Forging method of titanium alloy wide plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014536A (en) * | 2019-12-04 | 2020-04-17 | 攀钢集团成都钛材有限公司江油分公司 | Forging method of titanium alloy wide plate |
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Application publication date: 20170609 |