CN101749049A - Method for designing forged blank material for use in rolling of single-tenon blade - Google Patents
Method for designing forged blank material for use in rolling of single-tenon blade Download PDFInfo
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- CN101749049A CN101749049A CN200810229502A CN200810229502A CN101749049A CN 101749049 A CN101749049 A CN 101749049A CN 200810229502 A CN200810229502 A CN 200810229502A CN 200810229502 A CN200810229502 A CN 200810229502A CN 101749049 A CN101749049 A CN 101749049A
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Abstract
The invention discloses a method for designing a forged blank material for use in the rolling of a single-tenon blade. The forged blank material for use in the rolling of the single-tenon blade concretely comprises a blade root, a blade body and a blade tip and adopts design of equal thickness allowance of the blade root and equal proportion allowance of the blade tip. The invention determines the method for designing the forged blank material for use in the rolling of the single-tenon blade by summarization, which reduces the difficulties in the manufacturing of the forged blank material and improves the qualification rate by using blade basin equal section flat plate blank manufacturing technology. Meanwhile, the invention determines a blade body equal proportion allowance design method and a blade body equal proportion allowance design process. The designed blank material is suitable for the rolling processing of the section of the blade body of the blade so as to improve product qualification rate, reduce raw material consumption and reduce processing steps. Compared with the traditional method, the method for designing the forged blank material for use in the rolling of the single-tenon blade improves the material utilization rate by 40 percent, greatly reduces the difficulties in the manufacturing of a forging mold and the processing of a forging, simplifies the steps of the rolling processing and improves product qualification rate. The method for designing the forged blank material for use in the rolling of the single-tenon blade has foreseeable tremendous economic and social values.
Description
Technical field
The present invention relates to Blade Design and processing technique, a kind of forged blank material for use in rolling of single-tenon blade design method is provided especially.
Background technique
In the prior art, adopt the blade profile of rolling method work sheet tenon class blade,) blank adopts the forging woolen cloth more before the rolling, the blade profile of original forging woolen cloth is compared with the finished product blade, leave certain thickness surplus, blade forging almost all adopts the equal thickness surplus, and the forging profile is consistent with the finished product blade shape, have identical cross section distance and identical torsional angle, just on blade profile, increased an equal thickness surplus, this surplus generally between 0.6～1mm, for the less blade of edge thickness, has surpassed the amount of deformation of a rolling, can only adopt artificial polishing to remove flat plate margin or adopt the processing technology of twice rolling+intermediate annealing, so just strengthen production cost, increased difficulty of processing, waste material.
In addition, in the rolling course of working, each position amount of deformation of blade is inconsistent, especially blade inlet and outlet edge is asymmetric, easily produce lateral bending, crack at edge in the blade operation of rolling, product percent of pass is low, increases difficulty to forging mould manufacturing and forging processing simultaneously.
People catch at the better forged blank material for use in rolling of single-tenon blade of a kind of technique effect.
Summary of the invention
The purpose of this invention is to provide a kind of forged blank material for use in rolling of single-tenon blade design method.
The invention provides a kind of forged blank material for use in rolling of single-tenon blade design method, it is characterized in that: described forged blank material for use in rolling of single-tenon blade specifically includes blade root, blade, blade tip; Described forged blank material for use in rolling of single-tenon blade specifically adopts blade root equal thickness surplus, the design of blade tip equal proportion surplus.
Forged blank material for use in rolling of single-tenon blade design method of the present invention specifically is successively:
1) at first determines the blade root cross section; 2) determine the angle of equilibrium; 3) the blade root surplus places; 4) rotation of blade tip; 5) cutting in blade tip cross section is handled; 6) determine deformation coefficient K and the ratio surplus that places; 7) determine the marginal dimension in blade root, blade tip cross section; 8) recomputate the cross section distance, form a new woollen entity; In the described forged blank material for use in rolling of single-tenon blade design method, recomputate the cross section apart from and the requirement that forms a new woollen entity be:
L is new=L former (Cmax root+Cmax point)/(Cmax root+2A+KCmax point).
Explain " Cmax " implication: the maximum ga(u)ge of whole blade mobile position.
Forged blank material for use in rolling of single-tenon blade design method preferred content of the present invention specifically is successively:
1) at first determines the blade root cross section: the blade profile is defined as the root cross section with the tangent place of switching R, intercepts needed blade profile, be used for woollen design at this position; Carry out one of following two kinds processing afterwards: one, according to the profile coordinate in the cross section of this position, set up leaf model, its two, when the plan profile coordinate time of given this position not, on the model of foundation blade, intercept;
2) determine the angle of equilibrium: make the flat-cut line in blade root cross section, and the flat-cut line is changed into level, redefine system of coordinates X ' OY ', the blade root cross section is by new system of coordinates design;
3) placing of blade root surplus: the blade root cross section of finished product blade that will rotate through the angle of equilibrium is by monolateral increase 0.1mm surplus, as the blade root cross section of woollen forging;
4) rotation of blade tip: the blade tip cross section of finished product blade is rotated around the Z axle, the flat-cut line and the commentaries on classics of blade root flat-cut line in blade tip cross section is parallel;
5) the blade tip cross section is divided into plurality of sections, every segment distance is 2～5mm, and thickness is moved to leaf basin profile, forms a new profile;
6), determine deformation coefficient K, the ratio surplus that places according to definite deformation coefficient according to the permission deformation extent of material with forge the thickness that to accept the blade woolen cloth;
7) blade root of determining, the edge in blade tip cross section are widened about 0.3～1.5mm, edge thickness is defined as 0.1～1mm, forms new cross section;
8) recomputate the cross section distance, blade tip increases surplus 2～10mm, connects blade root and blade tip profile, forms a new woollen entity; Wherein:
L is new=L former (Cmax root+Cmax point)/(Cmax root+2A+KCmax point).
Also comprise following preferred content in the described forged blank material for use in rolling of single-tenon blade design method: recomputating the cross section distance, and form after the new woollen entity, read a cross section in new woollen entity stage casing, be increased among the woollen figure, be used to control and check woollen size.
The present invention has designed a kind of forged blank material for use in rolling of single-tenon blade, and described forged blank material for use in rolling of single-tenon blade specifically includes blade root, blade, blade tip; It is characterized in that: the feature of described forged blank material for use in rolling of single-tenon blade is: blade root is adopted the equal thickness surplus, and blade tip is the equal proportion surplus.
Described forged blank material for use in rolling of single-tenon blade also satisfies following requirement:
The leaf basin is designed to same profile by the root profile on whole blade length, blade back has the variation of profile, and the blade woolen cloth does not have torsional angle;
Blade length after calculating by equal-volume shortens the blade profile, measures the cross section simultaneously and follows the example of requirement: per 6～15mm gets one and measures the cross section; Get one about preferred general every 10mm and measure the cross section.
The processing detection of blade forging die and the detection of blade are all oversimplified.And the advancing of blade, exhaust edge when finish-forging by ironed, by the 0.4mm of the 0.8mm before the finish-forging behind the finish-forging.That is: the inlet and outlet edge of blade when finish-forging by ironed, be 0.4mm by the thickness of the 0.8mm before the finish-forging behind the finish-forging; The weight of blade forging is 28～35g.
Advantage of the present invention: the design method that the present invention concludes and established a kind of forged blank material for use in rolling of single-tenon blade, adopt the dull and stereotyped base technology of leaf basin uniform section to reduce the forge piece blank reheating manufacture difficulty, improve up-to-standard rate, simultaneously, be fit to establish the design method and the process of blade equal proportion surplus, designed blank is fit to the rolling processing of blade blade profile, improves product percent of pass, reduce raw-material consumption, reduce manufacturing procedure.
The present invention adopts said method to improve stock utilization than original method can reach 40%, greatly reduces the difficulty of processing of forging mould manufacturing and forging, has simplified the operation of rolling processing, improves product percent of pass.Have predictable huge economic and social value.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is a forged blank material for use in rolling of single-tenon blade blade root schematic cross-section;
Fig. 2 is the forged blank material for use in rolling of single-tenon blade angle of equilibrium and new system of coordinates schematic representation;
Fig. 3 is the principle schematic that places of forged blank material for use in rolling of single-tenon blade blade root surplus;
Fig. 4 is the rotation principle schematic of forged blank material for use in rolling of single-tenon blade blade tip;
Fig. 5 is a blade tip schematic sectional view in the forged blank material for use in rolling of single-tenon blade design process;
Fig. 6 is in the forged blank material for use in rolling of single-tenon blade design process, according to the thickness that the permission deformation extent and the forging of material can be accepted the blade woolen cloth, determines deformation coefficient K, places ratio surplus principle schematic according to the deformation coefficient of determining;
Fig. 7 is original forged blank material for use in rolling of single-tenon blade figure in the prior art;
Fig. 8 is forged blank material for use in rolling of single-tenon blade figure of the present invention;
Fig. 9 is the pairing finished product blade of a forged blank material for use in rolling of single-tenon blade of the present invention schematic representation.
Embodiment
Embodiment 1
A kind of forged blank material for use in rolling of single-tenon blade design method, described forged blank material for use in rolling of single-tenon blade specifically includes blade root, blade, blade tip; Described forged blank material for use in rolling of single-tenon blade specifically adopts the design of blade root equal thickness surplus, and blade tip adopts the equal proportion surplus.
Described forged blank material for use in rolling of single-tenon blade design method specifically is successively:
1) at first determines blade root cross section (referring to accompanying drawing 1): the blade profile is defined as the root cross section with the tangent place of switching R, intercepts needed blade profile, be used for woollen design at this position; According to the profile coordinate in this cross section, position, set up the model of blade;
2) determine the angle of equilibrium (referring to accompanying drawing 2): make the flat-cut line in blade root cross section, and the flat-cut line is changed into level, redefine system of coordinates X ' OY ', the blade root cross section is by new system of coordinates design;
3) the placing of blade root surplus (referring to accompanying drawing 3): the blade root cross section of finished product blade that will rotate through the angle of equilibrium is by monolateral increase A=0.3mm surplus, as the blade root cross section of woollen forging;
4) rotation of blade tip (referring to accompanying drawing 4): the blade tip cross section of finished product blade is rotated around the Z axle, the flat-cut line and the commentaries on classics of blade root flat-cut line in blade tip cross section is parallel;
5) the blade tip cross section is divided into plurality of sections, every segment distance is 3.5mm, and thickness is moved to leaf basin profile, forms a new profile (referring to accompanying drawing 5);
6), determine deformation coefficient K, the ratio surplus (referring to accompanying drawing 6) that places according to definite deformation coefficient according to the permission deformation extent of material with forge the thickness that to accept the blade woolen cloth;
7) blade root of determining, the edge in blade tip cross section are widened about 0.9mm, edge thickness is defined as 0.55mm, forms new cross section;
8) recomputate the cross section distance, blade tip increases surplus 6mm, connects blade root and blade tip profile, forms a new woollen entity; Wherein:
L is new=L former (Cmax root+Cmax point)/(Cmax root+2A+KCmax point).
9) after recomputating the cross section distance and forming a new woollen entity, read a cross section in new woollen entity stage casing, be increased among the woollen figure, be used to control and check woollen size.
A kind of forged blank material for use in rolling of single-tenon blade of present embodiment correspondence, described forged blank material for use in rolling of single-tenon blade specifically includes blade root, blade, blade tip; The feature of described forged blank material for use in rolling of single-tenon blade is: blade root is adopted the equal thickness surplus, and blade tip is the equal proportion surplus.
Described forged blank material for use in rolling of single-tenon blade also satisfies following requirement:
The leaf basin is designed to same profile by the root profile on whole blade length, blade back has the variation of profile, and the blade woolen cloth does not have torsional angle;
Blade length after calculating by equal-volume shortens the blade profile, measures the cross section simultaneously and follows the example of requirement: get one about every 10mm and measure the cross section.
The processing detection of blade forging die and the detection of blade are all oversimplified.And the advancing of blade, exhaust edge when finish-forging by ironed, by the 0.4mm of the 0.8mm before the finish-forging behind the finish-forging.That is: the inlet and outlet edge of blade when finish-forging by ironed, be 0.4mm by the thickness of the 0.8mm before the finish-forging behind the finish-forging; The weight of blade forging is 31g.
Embodiment 2
Present embodiment and embodiment's 1 content are basic identical, and its difference mainly is:
1) placing of blade root surplus: the blade root cross section of finished product blade that will rotate through the angle of equilibrium is by monolateral increase A=0.1mm surplus, as the blade root cross section of woollen forging;
2) in the 7th step of the design method of described forged blank material for use in rolling of single-tenon blade, the blade root of determining, the edge in blade tip cross section are widened about 0.3mm, edge thickness is defined as 0.1mm, forms new cross section;
3) in the 8th step, recomputate the cross section distance, blade tip increases surplus 2mm, connects blade root and blade tip profile, forms a new woollen entity; Wherein:
L is new={ L former (Cmax root+Cmax point)/(Cmax root+2A+KCmax point) }+2mm.
4) blade length after calculating by equal-volume shortens the blade profile, measures the cross section simultaneously and follows the example of requirement: every 6mm gets one and measures the cross section;
The processing detection of blade forging die and the detection of blade are all oversimplified.And the advancing of blade, exhaust edge when finish-forging by ironed, by the 0.4mm of the 0.8mm before the finish-forging behind the finish-forging.That is: the inlet and outlet edge of blade when finish-forging by ironed, be 0.4mm by the thickness of the 0.8mm before the finish-forging behind the finish-forging; The weight of blade forging is 28g.
Embodiment 3
Present embodiment and embodiment's 1 content are basic identical, and its difference mainly is:
1) placing of blade root surplus: the blade root cross section of finished product blade that will rotate through the angle of equilibrium is by monolateral increase A=0.5mm surplus, as the blade root cross section of woollen forging;
2) in the 7th step of the design method of described forged blank material for use in rolling of single-tenon blade, the blade root of determining, the edge in blade tip cross section are widened about 1.5mm, edge thickness is defined as 1mm, forms new cross section;
3) in the 8th step, recomputate the cross section distance, blade tip increases surplus 10mm, connects blade root and blade tip profile, forms a new woollen entity; Wherein:
L is new={ L former (Cmax root+Cmax point)/(Cmax root+2A+KCmax point) }+10mm.
4) blade length after calculating by equal-volume shortens the blade profile, measures the cross section simultaneously and follows the example of requirement: every 15mm gets one and measures the cross section;
The processing detection of blade forging die and the detection of blade are all oversimplified.And the advancing of blade, exhaust edge when finish-forging by ironed, by the 0.4mm of the 0.8mm before the finish-forging behind the finish-forging.That is: the inlet and outlet edge of blade when finish-forging by ironed, be 0.4mm by the thickness of the 0.8mm before the finish-forging behind the finish-forging; The weight of blade forging is 35g.
Claims (5)
1. forged blank material for use in rolling of single-tenon blade design method, it is characterized in that: described forged blank material for use in rolling of single-tenon blade specifically includes blade root, blade, blade tip; Described forged blank material for use in rolling of single-tenon blade specifically adopts blade root equal thickness surplus, the design of blade tip equal proportion surplus.
2. according to the described forged blank material for use in rolling of single-tenon blade design method of claim 1, it is characterized in that: described forged blank material for use in rolling of single-tenon blade design method specifically is successively:
1) at first determines the blade root cross section; 2) determine the angle of equilibrium; 3) the blade root surplus places; 4) rotation of blade tip; 5) cutting in blade tip cross section is handled; 6) determine deformation coefficient K and the ratio surplus that places; 7) determine the marginal dimension in blade root, blade tip cross section; 8) recomputate the cross section distance, form a new woollen entity.
3. according to the described forged blank material for use in rolling of single-tenon blade design method of claim 2, it is characterized in that: in the described forged blank material for use in rolling of single-tenon blade design method, recomputate the cross section apart from and the requirement that forms a new woollen entity be:
L is new=L former (Cmax root+Cmax point)/(Cmax root+0.2+KCmax point).
4. according to claim 2 or 3 described forged blank material for use in rolling of single-tenon blade design method, it is characterized in that: described forged blank material for use in rolling of single-tenon blade design method specifically is successively:
1) at first determines the blade root cross section: the blade profile is defined as the root cross section with the tangent place of switching R, intercepts needed blade profile, be used for woollen design at this position; Carry out one of following two kinds processing afterwards: one, according to the profile coordinate in the cross section of this position, set up leaf model, its two, when the plan profile coordinate time of given this position not, on the model of foundation blade, intercept;
2) determine the angle of equilibrium: make the flat-cut line in blade root cross section, and the flat-cut line is changed into level, redefine system of coordinates X ' OY ', the blade root cross section is by new system of coordinates design;
3) placing of blade root surplus: the blade root cross section of finished product blade that will rotate through the angle of equilibrium is by monolateral increase A=0.1～0.5mm surplus, as the blade root cross section of woollen forging;
4) rotation of blade tip: the blade tip cross section of finished product blade is rotated around the Z axle, the flat-cut line and the commentaries on classics of blade root flat-cut line in blade tip cross section is parallel;
5) the blade tip cross section is divided into plurality of sections, every segment distance is 2～5mm, and thickness is moved to leaf basin profile, forms a new profile;
6), determine deformation coefficient K, the ratio surplus that places according to definite deformation coefficient according to the permission deformation extent of material with forge the thickness that to accept the blade woolen cloth;
7) blade root of determining, the edge in blade tip cross section are widened about 0.3～1.5mm, edge thickness is defined as 0.1～1mm, forms new cross section;
8) recomputate the cross section distance, blade tip increases surplus 2～10mm, connects blade root and blade tip profile, forms a new woollen entity; Wherein:
L is new=L former (Cmax root+Cmax point)/(Cmax root+2A+KCmax point).
5. according to the described forged blank material for use in rolling of single-tenon blade design method of claim 4, it is characterized in that: in the described forged blank material for use in rolling of single-tenon blade design method, recomputate the cross section distance again, and form after the new woollen entity, read a cross section in new woollen entity stage casing, be increased among the woollen figure, be used to control and check woollen size.
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| CN200810229502A CN101749049A (en) | 2008-12-10 | 2008-12-10 | Method for designing forged blank material for use in rolling of single-tenon blade |
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| CN200810229502A CN101749049A (en) | 2008-12-10 | 2008-12-10 | Method for designing forged blank material for use in rolling of single-tenon blade |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987345A (en) * | 2010-08-24 | 2011-03-23 | 无锡透平叶片有限公司 | Little-allowance design method for stator blade forging of steam turbine |
| CN103604394A (en) * | 2013-10-19 | 2014-02-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing blade forging member having mounting plate with spatial angle |
| CN106563754A (en) * | 2016-11-11 | 2017-04-19 | 武汉理工大学 | Symmetrical forging formation method for double-body blades |
| CN107812870A (en) * | 2017-09-28 | 2018-03-20 | 中国航发动力股份有限公司 | A kind of manufacture method of forging blade blocking steps of manufacturing blanks |
| CN109351906A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of suitable for the rough forging of rolling and its pier nose mould design method of forging |
| CN110523929A (en) * | 2019-08-30 | 2019-12-03 | 中国航发动力股份有限公司 | A kind of vane foil dimensional control methods |
-
2008
- 2008-12-10 CN CN200810229502A patent/CN101749049A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987345A (en) * | 2010-08-24 | 2011-03-23 | 无锡透平叶片有限公司 | Little-allowance design method for stator blade forging of steam turbine |
| CN101987345B (en) * | 2010-08-24 | 2013-06-12 | 无锡透平叶片有限公司 | Little-allowance design method for stator blade forging of steam turbine |
| CN103604394A (en) * | 2013-10-19 | 2014-02-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for processing blade forging member having mounting plate with spatial angle |
| CN103604394B (en) * | 2013-10-19 | 2017-01-04 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of installing plate is with the blade forging processing method of space angle |
| CN106563754A (en) * | 2016-11-11 | 2017-04-19 | 武汉理工大学 | Symmetrical forging formation method for double-body blades |
| CN107812870A (en) * | 2017-09-28 | 2018-03-20 | 中国航发动力股份有限公司 | A kind of manufacture method of forging blade blocking steps of manufacturing blanks |
| CN109351906A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of suitable for the rough forging of rolling and its pier nose mould design method of forging |
| CN110523929A (en) * | 2019-08-30 | 2019-12-03 | 中国航发动力股份有限公司 | A kind of vane foil dimensional control methods |
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Application publication date: 20100623 |