CN104889698A - Titanium alloy ring groove rivet integral processing method - Google Patents
Titanium alloy ring groove rivet integral processing method Download PDFInfo
- Publication number
- CN104889698A CN104889698A CN201510345386.4A CN201510345386A CN104889698A CN 104889698 A CN104889698 A CN 104889698A CN 201510345386 A CN201510345386 A CN 201510345386A CN 104889698 A CN104889698 A CN 104889698A
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- China
- Prior art keywords
- titanium alloy
- groove
- processing method
- alloy ring
- monoblock type
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000007514 turning Methods 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
Abstract
The invention provides a titanium alloy ring groove rivet integral processing method. The titanium alloy ring groove rivet integral processing method comprises the following steps of: (1) adopting a grinding processing method to obtain a blank which is composed of a polish rod and a countersunk head, wherein the length and diameter of the polish rod are in consistence with the length and the big diameter of a finished rod part; (2) adopting a turning process to respectively turn a rolling groove billet of each section of the ring groove and a groove with a certain depth at the positions of the polish rod in the length direction; (3) utilizing an integral rolling groove wheel with groove teeth matching with the groove type of each part of the finished rod part, and performing one-time integral rolling to finish the process of the finished rod part. The titanium alloy ring groove rivet integral processing method has the advantages of high processing efficiency, low turning tool loss, good product size consistence and the like.
Description
Technical field
The invention belongs to the processing technique field of ring-grooved rivet, is specifically related to one in conjunction with turning process and roll extrusion frock, completes the process of annular groove and cut-off neck slot processing simultaneously.
Background technology
With nail, titanium alloy ring-grooved rivet overlaps that counterpart is easy to operate, efficiency of assembling is high, shock resistance is good, be widely used at aerospace field.Conventional titanium alloy ring-grooved rivet is made up of two sections of annular grooves and a cut-off neck slot, processing method conventional at present has four kinds: first method is first turning cut-off neck slot, the slot rolling base footpath of reface two sections of annular grooves, last independent roll extrusion two sections of annular grooves (the method abbreviation method one) at twice, the method operation is more, and operating process is loaded down with trivial details, and production efficiency is low, sectional forming process makes product axial location easily produce deviation, and machining accuracy reduces; Second method is use the method turning of Vehicle Processing to go out two sections of annular grooves and cut-off neck slot (the method abbreviation method two), the method uses turnery processing due to entirety, not only long processing time, production efficiency are low, and pole wearing and tearing cutter, processing cost is high, and because turning process more easily makes product axial location produce deviation, machining accuracy is not high; ; The third method is that after turning goes out annular groove base footpath, direct slot rolling takes turns slot rolling (the method abbreviation method three), and the method is comparatively large due to cut-off neck slot position machining deformation amount, easily produces stress and concentrates, not only damage slot rolling wheel, more easily cause product rejection.
Summary of the invention
The invention, for solving the problems of the prior art, provides a kind of titanium alloy ring-grooved rivet monoblock type processing method, has the advantages such as working (machining) efficiency is high, lathe tool loss is little, product size uniformity is good.
The technical scheme that the invention adopts is, comprises the steps: that (1) adopts the method for grinding to obtain the blank be made up of polished rod and countersunk head; Length and the large footpath in the length of described polished rod and diameter and finished product bar portion are consistent; (2) adopt turning process polished rod length direction correspondence position respectively turning go out the slot rolling billet of each section of annular groove and there is the groove of certain depth; (3) utilize the monoblock type slot rolling with the groove tooth matched with finished product bar portion each several part grooved to take turns, complete the processing in finished product bar portion through disposable integral roll extrusion.
Wherein, described step (1) can utilize numerical control centerless grinder to machine.Before grinding, product is upsetting product preferably, and the diameter of upsetting product bar is preferably 101% ~ 102% of large footpath, finished product bar portion, is convenient to grinding.Grinding can ensure product polished rod dimensional requirement, and prevents from producing when step (2) turning beating, and improves Vehicle Processing precision.
Wherein, in described step (2), the diameter of each slot rolling billet is 88% ~ 91% of this section of large footpath of corresponding annular groove, is preferably 90%.The degree of depth of described groove is 1.3 ~ 1.4 times of corresponding cut-off neck slot path, is preferably 1.3 times.The slot rolling billet that described step (2) turning goes out each section of annular groove can improve the machining accuracy of each section of annular groove roll forming, stress when groove also can reduce roll extrusion during roll extrusion cut-off neck slot is concentrated, improve slot rolling wheel life-span and processing stability, and improve product appearance quality.Described turning process can utilize numerically controlled lathe to complete.
Wherein, described step (3) rolling pressure is 4.5 ~ 5.5kN, is preferably 5kN, roller rotating speed 40 ~ 50 revs/min, is preferably 45 revs/min.Described step (3) adopts monoblock type slot rolling to take turns a roll forming, and production efficiency improves, and the axial location deviation produced when avoiding segmental machining, machining accuracy is high, good product consistency.When slot rolling takes turns a part damage, this slot rolling wheel can be pivoted 50 ° ~ 80 ° and carry out changing a roll extrusion, continue on for Product processing, increase the service life.
Wherein, the quantity of described each section of annular groove can be one or more snippets, and especially for the processing of titanium alloy ring-grooved rivet with Multi-segment circular groove, the method for the invention can improve working (machining) efficiency more significantly and reduce processing percent defective.Further, the grooved of described each section of annular groove can be identical or different, comprises circular arc type annular groove, platybasic type annular groove etc.
About the description of " unanimously " to size in the invention, comprise the situation of the error that there is zone of reasonableness between relative dimensions, and not relevant size is defined as " identical ".
The titanium alloy ring-grooved rivet monoblock type processing method that the invention provides, greatly can improve the working (machining) efficiency of titanium alloy ring-grooved rivet, processing percent defective is made to be reduced within 1%, the dimensional discrepancy of each working position controls within 0.02mm, lathe tool damages and repairs frequency and is low to moderate 1/5 of primary frequency, and the slot rolling wheel processing life-span is increased to more than 100 times; Simultaneously, the product adopting the invention to obtain all can meet products standards requirement, as HB8011-2002 (name is called: TC16 titanium alloy 90 ° of countersunk head interference engagement ring-grooved rivets), HB8010-2002 (name is called: TC16 titanium alloy flat round end interference engagement ring-grooved rivet), HB8009-2002 (name is called: TC16 titanium alloy 90 ° of countersunk head ring-grooved rivets) and HB8008-2002 (name is called: the flat round end ring-grooved rivet of TC16 titanium alloy) etc. in the performance tests such as pull-off force, riveted joint property.Wherein, waste product refers to the product that cannot count finished product in process because causing dimension overproof in debug process before cutter, the damage of slot rolling wheel or processing; The ratio of product sum when percent defective refers to that the product quantity that cannot count finished product and the production schedule are assigned.
Accompanying drawing explanation
Fig. 1 is the titanium alloy ring-grooved rivet product structure schematic diagram with a certain structure.
Fig. 2 is blank structural representation after grinding in the invention scheme.
Fig. 3 is structural representation after turnery processing in the invention scheme.
Fig. 4 is monoblock type slot rolling wheel construction schematic diagram in the invention scheme.Wherein, Fig. 4-1 is slot rolling wheel side-looking direction schematic diagram, and Fig. 4-2 takes turns main apparent direction schematic diagram for slot rolling, and Fig. 4-3 is the partial enlarged drawing of Fig. 4-2 groove toothed portion.
Wherein, 1-bar portion; 11-circular arc type annular groove; 12-cut-off neck slot; 13-platybasic type annular groove; 2-polished rod; 3-circular arc type slot rolling billet; 4-groove; 5-platybasic type slot rolling billet; 6-groove tooth.
Detailed description of the invention
Below by being further described the invention by reference to the accompanying drawings.
To make the titanium alloy ring-grooved rivet product of structure as shown in Figure 1, its bar portion 1 comprises circular arc type annular groove 11, cut-off neck slot 12 and platybasic type annular groove 13 successively.The diameter adopting upsetting product bar is 101% of large footpath, finished product bar portion 1, utilizes numerical control centerless grinder, adopts the method for grinding to obtain the blank be made up of polished rod 2 and countersunk head; The length in the length of described polished rod 2 and diameter and finished product bar portion 1 and large footpath consistent (as Fig. 2).Adopt the turning process of numerically controlled lathe, along polished rod 2 length direction respectively turning go out the circular arc type slot rolling billet 3 corresponding with described circular arc type annular groove 11, cut-off neck slot 12 and platybasic type annular groove 13 position and length, groove 4 and platybasic type slot rolling billet 5 (as Fig. 3), the diameter of described circular arc type slot rolling billet 3 and platybasic type slot rolling billet 5 is respectively 90% of described circular arc type annular groove 11 and the large footpath of platybasic type annular groove 13, and the degree of depth of groove 4 is 1.3 times of cut-off neck slot 12 path.Finally utilize the monoblock type slot rolling shown in Fig. 4 to take turns, complete the processing in finished product bar portion 1 through disposable integral roll extrusion, rolling pressure is 5kN, roller rotating speed 45 revs/min, and described monoblock type slot rolling wheel has the groove tooth 6 matched with finished product bar portion 1 each several part grooved.
For 500 titanium alloy ring-grooved rivet products with structure as shown in Figure 1 of the same specification of each processing, adopt the technical scheme of three kinds of methods of the prior art (the three kinds of methods introduced in background technology) and the invention respectively, verify the effect of each processing method.Result is as shown in table 1.
Table 1 four kinds of rolling depression method contrast tables
Claims (4)
1. a titanium alloy ring-grooved rivet monoblock type processing method, comprises the steps: that (1) adopts the method for grinding to obtain the blank be made up of polished rod and countersunk head; Length and the large footpath in the length of described polished rod and diameter and finished product bar portion are consistent; (2) adopt turning process polished rod length direction correspondence position respectively turning go out the slot rolling billet of each section of annular groove and there is the groove of certain depth; (3) utilize the monoblock type slot rolling with the groove tooth matched with finished product bar portion each several part grooved to take turns, complete the processing in finished product bar portion through disposable integral roll extrusion.
2. titanium alloy ring-grooved rivet monoblock type processing method according to claim 1, is characterized in that, before described step (1) grinding, product is upsetting product, and the diameter of upsetting product bar is 101% ~ 102% of large footpath, finished product bar portion.
3. titanium alloy ring-grooved rivet monoblock type processing method according to claim 1, it is characterized in that, in described step (2), the diameter of each slot rolling billet is 88% ~ 91% of this section of large footpath of corresponding annular groove, and the degree of depth of described groove is 1.3-1.4 times of corresponding cut-off neck slot path.
4. titanium alloy ring-grooved rivet monoblock type processing method according to claim 1, it is characterized in that, described step (3) rolling pressure is 4.5 ~ 5.5kN, roller rotating speed 40 ~ 50 revs/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345386.4A CN104889698B (en) | 2015-06-19 | 2015-06-19 | A kind of titanium alloy ring-grooved rivet monoblock type processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345386.4A CN104889698B (en) | 2015-06-19 | 2015-06-19 | A kind of titanium alloy ring-grooved rivet monoblock type processing method |
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| Publication Number | Publication Date |
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| CN104889698A true CN104889698A (en) | 2015-09-09 |
| CN104889698B CN104889698B (en) | 2017-06-23 |
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| CN201510345386.4A Active CN104889698B (en) | 2015-06-19 | 2015-06-19 | A kind of titanium alloy ring-grooved rivet monoblock type processing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518397A (en) * | 2018-05-31 | 2018-09-11 | 贵州精立航太科技有限公司 | A kind of TITAIUM ALLOY RIVETS and preparation method thereof that hot environment uses |
| CN110355531A (en) * | 2019-07-25 | 2019-10-22 | 王丽 | A kind of processing technology of ring-grooved rivet |
| CN110480350A (en) * | 2019-06-24 | 2019-11-22 | 苏州炬鸿通讯电脑科技有限公司 | A kind of battery cover board rivet automatic turning cutting mechanism |
| CN112518230A (en) * | 2020-11-30 | 2021-03-19 | 贵州精立航太科技有限公司 | Processing technology of high-temperature-resistant alloy core rod breaking groove of self-plugging rivet |
Citations (4)
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| DE4003373C1 (en) * | 1990-02-05 | 1991-05-08 | Sfs Stadler Holding Ag, Heerbrugg, Ch | |
| CN102500729A (en) * | 2011-10-24 | 2012-06-20 | 陕西天达航空标准件有限公司 | Rolling method for ring-grooved rivet |
| CN102689164A (en) * | 2012-06-19 | 2012-09-26 | 东方蓝天钛金科技有限公司 | Processing process of titanium alloy ring groove rivet with big length-to-diameter ratio |
| CN104100622A (en) * | 2013-04-08 | 2014-10-15 | 彭亮生 | Large-scale and high-intensity rivet connection pair and manufacturing method thereof |
-
2015
- 2015-06-19 CN CN201510345386.4A patent/CN104889698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4003373C1 (en) * | 1990-02-05 | 1991-05-08 | Sfs Stadler Holding Ag, Heerbrugg, Ch | |
| CN102500729A (en) * | 2011-10-24 | 2012-06-20 | 陕西天达航空标准件有限公司 | Rolling method for ring-grooved rivet |
| CN102689164A (en) * | 2012-06-19 | 2012-09-26 | 东方蓝天钛金科技有限公司 | Processing process of titanium alloy ring groove rivet with big length-to-diameter ratio |
| CN104100622A (en) * | 2013-04-08 | 2014-10-15 | 彭亮生 | Large-scale and high-intensity rivet connection pair and manufacturing method thereof |
Non-Patent Citations (1)
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| 崔兆永: "铁路货车专用拉铆钉制造工艺与质量控制系统研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518397A (en) * | 2018-05-31 | 2018-09-11 | 贵州精立航太科技有限公司 | A kind of TITAIUM ALLOY RIVETS and preparation method thereof that hot environment uses |
| CN110480350A (en) * | 2019-06-24 | 2019-11-22 | 苏州炬鸿通讯电脑科技有限公司 | A kind of battery cover board rivet automatic turning cutting mechanism |
| CN110480350B (en) * | 2019-06-24 | 2024-04-12 | 苏州炬鸿通讯电脑科技有限公司 | Automatic turning and cutting mechanism for battery cover plate rivet |
| CN110355531A (en) * | 2019-07-25 | 2019-10-22 | 王丽 | A kind of processing technology of ring-grooved rivet |
| CN110355531B (en) * | 2019-07-25 | 2020-11-10 | 王丽 | Processing technology of ring groove rivet |
| CN112518230A (en) * | 2020-11-30 | 2021-03-19 | 贵州精立航太科技有限公司 | Processing technology of high-temperature-resistant alloy core rod breaking groove of self-plugging rivet |
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| CN104889698B (en) | 2017-06-23 |
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