CN102962475A - Radial cutting method of extralarge-depth-to-width-ratio thin-disc titanium alloy coupling diaphragm - Google Patents
Radial cutting method of extralarge-depth-to-width-ratio thin-disc titanium alloy coupling diaphragm Download PDFInfo
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- CN102962475A CN102962475A CN201210456953XA CN201210456953A CN102962475A CN 102962475 A CN102962475 A CN 102962475A CN 201210456953X A CN201210456953X A CN 201210456953XA CN 201210456953 A CN201210456953 A CN 201210456953A CN 102962475 A CN102962475 A CN 102962475A
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Abstract
The invention relates to a radial cutting method of an extralarge-depth-to-width-ratio thin-disc titanium alloy coupling diaphragm, belonging to the technical field of titanium alloy coupling diaphragm processing, aiming at solving the problem that the titanium alloy coupling diaphragm is uneasy to process. The radial cutting method comprises the following steps of: firstly matching the inner hole of the titanium alloy coupling diaphragm to be processed with a mandrel, wherein one end of the mandrel is clamped by using a lathe clamping claw, an ejector tip is used for ejecting against the other end of the mandrel and the other end of the mandrel is tightly pressed by using a gland; then by using a step cutting method and selecting a plurality of fish-shaped reverse cutting knives to sequentially cut into the outer circle of the titanium alloy coupling diaphragm to be processed; and finally clamping the out circle of the titanium alloy coupling diaphragm to be processed and selecting a plurality of different-width inner hole reverse cutting knives to sequentially cut into the inner circle of the titanium alloy coupling diaphragm to be processed, so as to cut the titanium alloy coupling diaphragm to be processed into two pieces along the radial direction. The radial cutting method is suitable for the radial cutting of the thin-disc titanium alloy coupling diaphragm.
Description
Technical field
The present invention relates to the thin dish class of a kind of super large depth-to-width ratio titanium alloy shaft coupling diaphragm radial cut extraction of root, belong to titanium alloy shaft coupling diaphragm processing technique field.
Background technology
Gas turbine shaft coupling diaphragm is because diameter is large, and endoporus is little, so that need to be swaged into a blank with two parts to little, therefore, it is radially cut is a difficult problem.
The main cause that titanium alloy shaft coupling diaphragm is difficult for processing is as follows:
1, under the aerial oxygen of titanium alloy smear metal, the nitrogen effect, easily form crisp sclerosis compound and become the short fragment shape, make the contact length of cutter and smear metal become very short, cutting force and heat in metal cutting concentrate near the cutting edge, cause easily tipping;
2, the chemical affinity of titanium alloy shaft coupling diaphragm and cutter material is strong, and the bonding phenomenon of smear metal and cutter is serious, makes the bonding of cutter and diffusive wear serious;
3, the titanium alloy thermal conductivity factor is very little, only is 1/6～1/7 of 45 steel, the thermal conductivity extreme difference, and also density is low, specific heat is little, and heat concentrates near the cutting edge during cutting, and sword district extreme temperatures makes tool wear rapid, even because of the overheated cutting ability of losing;
4, the titanium alloy elastic modulus is little, is about 1/2 of 45 steel, so the workpiece elasticity at rear knife face place is recovered greatly, friction is serious.Simultaneously, the workpiece work in-process step up distortion and stress deformation also large, thereby can lower machining accuracy;
Easily burning is on fire more to it should be noted that the titanium alloy smear metal, for this reason, should avoid forming too tiny smear metal during cutting, and smear metal can not be piled up, or water, emulsion adhesional wetting smear metal.
To sum up, titanium alloy shaft coupling diaphragm cutting-in is huge and belong to difficult-to-machine material, generally is inconceivable.
Summary of the invention
The present invention is the problem that is difficult for processing in order to solve titanium alloy shaft coupling diaphragm, and the thin dish class of a kind of super large depth-to-width ratio titanium alloy shaft coupling diaphragm radial cut extraction of root is provided.
The thin dish class of the super large depth-to-width ratio of the present invention titanium alloy shaft coupling diaphragm radial cut extraction of root, it may further comprise the steps:
Step 1: titanium alloy shaft coupling diaphragm endoporus to be processed is cooperated with axle, this axle one end lathe claw clamping, the other end withstands with top, and compresses with gland;
Step 2: adopt the ladder plunge method, select manyly fish shape anti-cutter, cut successively titanium alloy shaft coupling diaphragm cylindrical to be processed;
Step 3: clamp the cylindrical of titanium alloy shaft coupling diaphragm to be processed, select manyly the different endoporus anti-cutter of width, cut successively titanium alloy shaft coupling diaphragm inner circle to be processed, titanium alloy shaft coupling diaphragm to be processed radially is cut to two.
Described titanium alloy shaft coupling diaphragm endoporus to be processed and axle adopt zero interference fits.
The cutting fluid that adopts in process is sulfurized oil.
The cutting parameter of fish shape anti-cutter and endoporus anti-cutter is: n=(5～8) r/min; F=0.075～0.25mm/r, wherein n is the lathe spindle rotating speed, and r is revolution, and f is feed rate, and mm is millimeter.
That selects in the step 2 is how different the width of fish shape anti-cutter.
Described fish shape anti-cutter is 5.
That selects in the step 3 is how different the width of endoporus anti-cutter.
Described endoporus anti-cutter is 2.
Advantage of the present invention is: in the inventive method, because the workpiece to be processed material is titanium alloy, its machining deformation coefficient is little, cutting temperature is high, and main cutting force is little, and back force is large, finished surface easily generates hard crisp metamorphic layer, particularly sticking cutter phenomenon is serious, adopts outer round cutting-off tool traditional method of indicating the pronunciation of a Chinese character form more reasonable, can guarantee smooth chip removal like this, prevent smear metal scratch machined surface, affect product quality.
Description of drawings
Installation way schematic diagram when Fig. 1 radially cuts titanium alloy shaft coupling diaphragm for employing the inventive method;
Fig. 2 is the structural representation of fish shape anti-cutter.
The specific embodiment
The specific embodiment one: below in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the thin dish class of the described super large depth-to-width ratio of the present embodiment titanium alloy shaft coupling diaphragm radial cut extraction of root, it may further comprise the steps:
Step 1: titanium alloy shaft coupling diaphragm 1 endoporus to be processed is cooperated with axle 2, these axle 2 one ends lathe claw clamping, the other end withstands with top, and compresses with gland 3;
Step 2: adopt the ladder plunge method, select manyly fish shape anti-cutter, cut successively titanium alloy shaft coupling diaphragm 1 cylindrical to be processed;
Step 3: clamp the cylindrical of titanium alloy shaft coupling diaphragm 1 to be processed, select manyly the different endoporus anti-cutter of width, cut successively titanium alloy shaft coupling diaphragm 1 inner circle to be processed, titanium alloy shaft coupling diaphragm 1 to be processed radially is cut to two.
Present embodiment can be used for the titanium alloy T C11 shaft coupling diaphragm super large degree of depth cuts in the technique, and it adopts traditional method of indicating the pronunciation of a Chinese character processing.Treat machining titanium alloy shaft coupling diaphragm 1 and process, because its cylindrical is larger, endoporus is less, so the incision scheme is for first from Excircle machining.Select as required the different fish shape anti-cutter of 5 width as outer round cutting-off tool group, play the main cutting effect, its cutter width and effectively cutting depth is as shown in table 1:
Table 1
| |
1 | 2 | 3 | 4 | 5 |
| The cutter width | 11mm | 10.5mm | 10mm | 9.5mm | 9mm |
| Effective cutting depth | 50mm | 110mm | 170mm | 230mm | 280mm |
The endoporus anti-cutter plays the effect that distributes cutting output, and it has reduced the cutting difficulty of titanium alloy shaft coupling diaphragm 1 to be processed, has solved cutter and has made difficulty and use the vibration problem.
The material of fish shape anti-cutter is chosen as: cutter hub 45 steel, blade YM052.
The specific embodiment two: below in conjunction with Fig. 1 present embodiment is described, present embodiment is for to the further specifying of embodiment one, and described titanium alloy shaft coupling diaphragm 1 endoporus to be processed adopts zero interference fits with axle 2.
The specific embodiment three: present embodiment is for to the further specifying of embodiment one or two, and the cutting fluid that adopts in process is sulfurized oil.
This sulfurized oil is sufficiently cooled before use.
The specific embodiment four: present embodiment is for to embodiment one, two or three further specify, and the cutting parameter of fish shape anti-cutter and endoporus anti-cutter is: n=(5～8) r/min; F=0.075～0.25mm/r, wherein n is the lathe spindle rotating speed, and r is revolution, and f is feed rate, and mm is millimeter.
The specific embodiment five: present embodiment is for to embodiment one, two, three or four further specify, and that selects in the step 2 is many width of fish shape anti-cutter difference.
The specific embodiment six: present embodiment is for to embodiment one, two, three, four or five further specify, and described fish shape anti-cutter is 5.
The specific embodiment seven: present embodiment is for to embodiment one, two, three, four, five or six further specify, and that selects in the step 3 is many width of endoporus anti-cutter difference.
The specific embodiment eight: present embodiment is for to embodiment one, two, three, four, five, six or seven further specify, and described endoporus anti-cutter is 2.
The present invention need to provide sufficient cooling fluid to cutting region when machining, to reduce cutting temperature, weakens the chemical reaction between workpiece material and cutter material.
The test of cutting parameter:
Guaranteeing to need repetition test cutting speed and the amount of feeding under the stable condition of cutting knife intensity and cutting ability, according to the difference of different cutting parameters on the cutting ability impact, determine best testing program again.
Result of the test and analysis:
Traditional method of indicating the pronunciation of a Chinese character lathe tool shape and angle are on the impact of cutting ability:
Because titanium alloy plasticity is little, cutter bits contact length is short, should select less anterior angle γ., because the titanium alloy elastic modulus is little, should get larger relief angle α., reducing friction, and strengthen the point of a knife heat dispersion.
To ask for γ more than comprehensive.＝8°±10′，αo＝12°±10′。
Prove through on-the-spot machining experiment, under identical cutting parameter, adopt the traditional method of indicating the pronunciation of a Chinese character than tangent superiority to be arranged, the traditional method of indicating the pronunciation of a Chinese character can improve the chip removal effect effectively than tangent, the smear metal of the traditional method of indicating the pronunciation of a Chinese character can be along the directly downwards landing of cutting knife cutting direction, thereby prevents that smear metal is squeezed in the grooving, can not smooth and easyly discharge.
Because being forging, the present invention cuts processing, for improving the utilization rate of material, the thinnest 9mm that is defined as of cutting knife thickness.In addition, when the forging wall thickness is 280mm, adopt outer round cutting-off tool group ladder plunge method, 5 cut the fish shape traditional method of indicating the pronunciation of a Chinese character lathe tool of different in width successively, under the less state of surplus, with the endoporus anti-cutter from endoporus lateral incision part.
Through experimental results show that: the inventive method is cut the thin inaccessible degree of prior art that all reached that the degree of depth is big and cut rear two part thickness that obtain to workpiece.The inventive method can be finished the incision processing of TC11 annular forging piece effectively, and for the product turning of processing same type of material provides the effect reference, has guaranteed simultaneously forward and backward shaft coupling assembly quality and production cycle.
It is more than 5 that the super large depth-to-width ratio refers generally to the depth-to-width ratio value.
Claims (8)
1. the thin dish class of super large depth-to-width ratio titanium alloy shaft coupling diaphragm radial cut extraction of root, it is characterized in that: it may further comprise the steps:
Step 1: titanium alloy shaft coupling diaphragm to be processed (1) endoporus is cooperated with axle (2), these axle (2) one ends lathe claw clamping, the other end withstands with top, and compresses with gland (3);
Step 2: adopt the ladder plunge method, select manyly fish shape anti-cutter, cut successively titanium alloy shaft coupling diaphragm to be processed (1) cylindrical;
Step 3: the cylindrical that clamps titanium alloy shaft coupling diaphragm to be processed (1), select many different endoporus anti-cutter of width, cut successively titanium alloy shaft coupling diaphragm to be processed (1) inner circle, titanium alloy shaft coupling diaphragm to be processed (1) radially is cut to two.
2. the thin dish class of the super large depth-to-width ratio according to claim 1 titanium alloy shaft coupling diaphragm radial cut extraction of root is characterized in that: described titanium alloy shaft coupling diaphragm (1) endoporus to be processed and axle (2) employing zero interference fits.
3. the thin dish class of the super large depth-to-width ratio according to claim 1 and 2 titanium alloy shaft coupling diaphragm radial cut extraction of root, it is characterized in that: the cutting fluid that adopts in process is sulfurized oil.
4. the thin dish class of the super large depth-to-width ratio according to claim 1 and 2 titanium alloy shaft coupling diaphragm radial cut extraction of root, it is characterized in that: the cutting parameter of fish shape anti-cutter and endoporus anti-cutter is: n=(5～8) r/min; F=0.075～0.25mm/r, wherein n is the lathe spindle rotating speed, and r is revolution, and f is feed rate, and mm is millimeter.
5. the thin dish class of the super large depth-to-width ratio according to claim 1 titanium alloy shaft coupling diaphragm radial cut extraction of root is characterized in that: that selects in the step 2 is how different the width of fish shape anti-cutter.
6. the thin dish class of the super large depth-to-width ratio titanium alloy shaft coupling diaphragm radial cut extraction of root according to claim 1 or 5, it is characterized in that: described fish shape anti-cutter is 5.
7. the thin dish class of the super large depth-to-width ratio according to claim 1 titanium alloy shaft coupling diaphragm radial cut extraction of root is characterized in that: that selects in the step 3 is how different the width of endoporus anti-cutter.
8. according to claim 1 or the thin dish class of the 7 described super large depth-to-width ratios titanium alloy shaft coupling diaphragm radial cut extraction of root, it is characterized in that: described endoporus anti-cutter is 2.
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|---|---|---|---|
| CN201210456953.XA CN102962475B (en) | 2012-11-14 | 2012-11-14 | Radial cutting method of extralarge-depth-to-width-ratio thin-disc titanium alloy coupling diaphragm |
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| CN201210456953.XA CN102962475B (en) | 2012-11-14 | 2012-11-14 | Radial cutting method of extralarge-depth-to-width-ratio thin-disc titanium alloy coupling diaphragm |
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| CN102962475B CN102962475B (en) | 2014-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472931A (en) * | 2022-02-18 | 2022-05-13 | 西安航天发动机有限公司 | Single-hinge type titanium alloy diaphragm turning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4938641A (en) * | 1987-07-22 | 1990-07-03 | Schwarzkopf Development Corporation | Parting tool |
| CN1734114A (en) * | 2005-02-07 | 2006-02-15 | 周新光 | Diaphragm of coupling |
| CN200952535Y (en) * | 2006-09-18 | 2007-09-26 | 丹东克隆集团有限责任公司 | Diaphragm coupling diaphragm assembly |
| CN201613348U (en) * | 2009-03-27 | 2010-10-27 | 孝感市欧麦迪机械工业有限公司 | Numerical control slicing machine |
-
2012
- 2012-11-14 CN CN201210456953.XA patent/CN102962475B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4938641A (en) * | 1987-07-22 | 1990-07-03 | Schwarzkopf Development Corporation | Parting tool |
| CN1734114A (en) * | 2005-02-07 | 2006-02-15 | 周新光 | Diaphragm of coupling |
| CN200952535Y (en) * | 2006-09-18 | 2007-09-26 | 丹东克隆集团有限责任公司 | Diaphragm coupling diaphragm assembly |
| CN201613348U (en) * | 2009-03-27 | 2010-10-27 | 孝感市欧麦迪机械工业有限公司 | Numerical control slicing machine |
Non-Patent Citations (1)
| Title |
|---|
| 邸建辉: "联轴器膜片加工模具的设计制作", 《金属加工（冷加工）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472931A (en) * | 2022-02-18 | 2022-05-13 | 西安航天发动机有限公司 | Single-hinge type titanium alloy diaphragm turning method |
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Effective date of registration: 20221221 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin Patentee before: HARBIN TURBINE Co.,Ltd. |