CN106041419A - Aluminum alloy rotation body precise part production technology for removing spots on surface obtained after machining and oxidization - Google Patents
Aluminum alloy rotation body precise part production technology for removing spots on surface obtained after machining and oxidization Download PDFInfo
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- CN106041419A CN106041419A CN201610444516.4A CN201610444516A CN106041419A CN 106041419 A CN106041419 A CN 106041419A CN 201610444516 A CN201610444516 A CN 201610444516A CN 106041419 A CN106041419 A CN 106041419A
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- aluminum alloy
- alloy bar
- precision
- sulphuric acid
- lathe
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- 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
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Abstract
The invention relates to an aluminum alloy rotation body precise part production technology for removing spots on a surface obtained after machining and oxidization. An aluminum alloy bar serves as a raw material. The technology comprises the following production steps that firstly, positioning holes are drilled in the end faces of the two sides of the aluminum alloy bar correspondingly, the axes of the two positioning holes are located on the same straight line and pass through a point on the axis of the aluminum alloy bar, and a certain included angle is formed between the axes of the two positioning holes and the axis of the aluminum alloy bar; secondly, the aluminum alloy bar is fixed on a lathe in a two-centre positioning manner, and a front centre of the lathe and a rear centre of the lathe are matched with the two positioning holes of the aluminum alloy bar correspondingly; thirdly, the lathe is used for machining the aluminum alloy bar into a part blank in the axis direction of the two positioning holes; fourthly, the part blank is subjected to finish machining; and fifthly, electrochemical sulfuric acid anode oxidization treatment is conducted on the part obtained after finish machining, and a final product is obtained. By means of the technology, thick and large fiber texture spot patterns formed randomly on the surface of an aluminum alloy rotation body after machining and oxidization are removed, and therefore the size precision and the surface quality of the precise part are ensured, and the qualification rate of the precise part is increased.
Description
Technical field
The present invention relates to machining production technical field, particularly relate to a kind of aluminum removing processing oxidation rear surface spot and close
Gold revolving body precision component production technology.
Background technology
In today of market economy, the requirement of product surface quality is being improved constantly by client, aluminum alloy rotary body part
The rods and bars of aluminium alloy of the raw material generally used, aluminium alloy bar producing when, its internal extruding extension single and its
Axis is parallel, and therefore a lot of aluminum alloy parts are after machining, although machining surface quality disclosure satisfy that drawing requirement,
But after electrochemistry sulphuric acid anodizing processes, most parts are thick because of the internal extensible fibers of aluminium alloy bar, cause part after oxidation
All the time there is spot, silking pattern in surface, because oxidized surface defect causes part rejection.
If parts size precision is relatively low, the method such as surface sand-blasting, chemical polishing can be used to solve, but accessory size is smart
Degree reach IT8 and more accurate time, it is roughening that sandblasting can destroy the accessory size accuracy of form and position, piece surface, it is therefore desirable to a kind of
New production technology improves the surface quality after aluminum alloy rotary body part oxidation processes and qualification rate.
Summary of the invention
The object of the invention is that and overcomes above-mentioned deficiency, it is provided that one is effectively improved aluminum alloy rotary body precision component surface
The production technology removing processing oxidation rear surface spot of quality.
For achieving the above object, the present invention is to be achieved through the following technical solutions: one removes processing oxidation rear surface speckle
The aluminum alloy rotary body precision component production technology of trace, raw material is aluminium alloy bar, and production stage is as follows:
1), in aluminium alloy bar two side ends face boring hole, location respectively, the axis in two holes, location is located along the same line and crosses aluminum and closes
One point union on gold bar axis is in a certain angle with aluminium alloy bar axis, and as a kind of optimal choice, angle is 6 °；
2), on lathe use Double Tops point location mode fix aluminium alloy bar, the front top and back centre of lathe respectively with aluminum
Two holes, location of alloy bar coordinate；
3), the axis direction along two holes, location uses lathe that aluminium alloy bar is processed into part blank；
4), precision-machined parts blank, obtain precision-machined parts；
5), to precision-machined parts carry out electrochemistry sulphuric acid anodizing process, obtain final products.
Further, above-mentioned steps 5) described in electrochemistry sulphuric acid anodizing process and include below scheme: part hanger, have
Machine solvent oil removing, room temperature oil removing, alkali liquor erosion wash, cold water flush, gloss finish, cold water flush, sulphuric acid anodizing, cold water punching
Wash, ammonia neutralization, cold water flush, coloring, cold water flush, cbromate seal, cold water flush, be dried, wiping, deliver for a check, pack and
Warehouse-in.
Wherein the solution washed of alkali liquor erosion be concentration be the sodium hydroxide solution of 50～60g/L, its temperature is 50-60 DEG C；Essence
It is 4-6min that processing part carries out alkali liquor time of washing of erosion.
Wherein the solution of sulphuric acid anodizing is mixed solution, and sulphuric acid and concentration including concentration is 160～180 g/L are
The oxalic acid of 12～18g/L, mixed solution temperature ＜ 25 DEG C；The DC voltage of sulphuric acid anodizing is 14-16V, and anode current is close
Degree is 0.8-1.5A/d；It is 40-50min that precision-machined parts carries out the time of sulphuric acid anodizing.
Wherein coloring flow process is light yellow coloring.
Wherein the solution of cbromate seal be concentration be the heavy complex acid potassium solution of 50-60g/L, its temperature is 80-98 DEG C；Essence
It is 5-10min that processing part carries out time of complex acid salt closing.
The invention have the benefit that in the production technology of the application, extrolling parallel with axis in aluminium alloy bar
The axis that exhibition single and two holes, location are connected defines certain angle, is returned as new processing by the axis that two holes, location are connected
Shaft axis, the lathe tool of lathe along two location holes axis direction axial feed time by the extruding extensible fibers in aluminium alloy bar
The whole oblique chopping of line, because thicker striped extruding extension single is chopped into, makes dominant spot, silking pattern impression become
Recessive pin point structure；In follow-up electrochemistry sulphuric acid anodizing processing procedure, by electrolysis and the erosion of sulphuric acid
Effect, produces chemolysis on part aluminum substrate surface, and the recess of micro state is deepened to gradually become hole, then at porous layer
Dissolving metamorphic pore, high spot becomes hole wall, and hole wall forms anticorrosive oxidation film layer, and hole bottom forms the aluminium oxide resistance of densification
Barrier, top layer carries out sealing of hole covering treatment and prevents contaminant infiltration from entering microcosmic top layer hole, thus after eliminating processing oxidation
The thick fiber pattern spot pattern that aluminum alloy rotary body surface is randomly formed, thus ensure that precision component dimensional accuracy and
Surface quality, improves precision component qualification rate.
Accompanying drawing explanation
Fig. 1 is locating and machining pore structure schematic diagram of the present invention.
Fig. 2 is that the oblique turning of the present invention extrudes extension single structural representation.
Fig. 3 is that part of the present invention carries out surface film oxide growth stage trend schematic diagram during sulphuric acid anodizing.
Detailed description of the invention
As shown in Figure 1: aluminium alloy bar 1 axis tilting 6 ° of location fixing, end face milling is shown in light, bores location with centre drill 2
Hole 301.In same section plane 180 ° tune, sloped position is fixed, end face milling, bores hole 302, bias location, determines with machined
Hole 301, position is coaxial.The axis that now two holes, location are connected and aluminium alloy bar 1 axis define the angle α of 6 °, i.e. with aluminium alloy
The axis of rotation that the parallel extruding extension single 7 of bar 1 axis has been connected with two hole, location (301,302) defines 6 °
Angle α.
As shown in Figure 2: use Double Tops point location mode, with front top 4, back centre 5 and aluminium alloy bar 1 on lathe
Two hole, location (301,302) coordinate, appropriateness holds out against, and heart carrier for bolt is fixed.Starting lathe, part rotates and forms axis of rotation, numerical control
Lathe tool 6 cuts along axis of rotation parallel direction feeding, by the aluminium alloy bar 1 the most rough turn one-tenth part blank of eccentric swing.This
Time look as broad as long with conventional hardware, real material internal fiber organizational structure has occurred and that change, has not had and aluminum
The extruding extension single 7 that alloy bar 1 bus is arranged in parallel, by complete for extruding extension single 7 during lathe tool feeding vertically
The oblique chopping in portion.
Scroll chuck holding parts blank, each hole of roughing, cylindrical, use polycrystalline diamond number lathe tool, use numerical control
Lathe high speed little feeding drying cutting, air-cooled blowing aluminum bits method, by size precision-machined parts, after polish, cleaning is dry
Only, cotton paper is packed, and precision-machined parts individually isolates the technological processes such as circulation.Ensure precision-machined parts oxidation before surface quality and
The accuracy of form and position, avoids colliding with when cutting fluid corrosion precision-machined parts surface, circulation, scratching precision-machined parts surface simultaneously.
As it is shown on figure 3, carry out aluminium alloy electric chemistry sulphuric acid anodizing, by electrolysis and the corrosion function of sulphuric acid, in essence
Processing part base solid surface produces chemolysis, and the recess 8 of micro state is deepened to gradually become hole 9, then at porous layer 11
Dissolving metamorphic pore 10, high spot becomes hole wall, and hole wall forms anticorrosive oxidation film layer 12, and hole bottom forms the oxidation of densification
Aluminum barrier layer 13, top layer carries out sealing of hole covering treatment and prevents contaminant infiltration from entering microcosmic top layer hole.
After precision-machined parts electrochemistry sulphuric acid anodizing processes, part outer surface should present oxide-film water white transparency, chromic acid
Salt presents dead color, pale yellow, the surface of uniform color after closing.
Precision-machined parts electrochemistry sulphuric acid anodizing operating process is followed successively by: part hanger organic solvent removes
Cold water flush gloss finish cold water flush sulphuric acid anodic oxygen is washed in oil room temperature oil removing alkali liquor erosion
Change in cold water flush ammonia and cold water flush colours (light yellow) cold water flush chromate
Closing cold water flush is dried (drying) wiping and delivers for a check packaging, warehouse-in.
Wherein the solution washed of alkali liquor erosion be concentration be the sodium hydroxide solution of 50～60g/L, its temperature is 50-60 DEG C；Essence
It is 4-6min that processing part carries out alkali liquor time of washing of erosion.
Wherein the solution of sulphuric acid anodizing is mixed solution, and sulphuric acid and concentration including concentration is 160～180 g/L are
The oxalic acid of 12～18g/L, mixed solution temperature ＜ 25 DEG C；The DC voltage of sulphuric acid anodizing is 14-16V, and anode current is close
Degree is 0.8-1.5A/d；It is 40-50min that precision-machined parts carries out the time of sulphuric acid anodizing.
Wherein the solution of cbromate seal be concentration be the heavy complex acid potassium solution of 50-60g/L, its temperature is 80-98 DEG C；Essence
It is 5-10min that processing part carries out time of complex acid salt closing.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (7)
1. going an aluminum alloy rotary body precision component production technology for processing oxidation rear surface spot, raw material is aluminium alloy bars
Material, it is characterised in that: step is as follows:
1), in aluminium alloy bar two side ends face boring hole, location respectively, the axis in two holes, location is located along the same line and crosses aluminum and closes
One point union on gold bar axis is in a certain angle with aluminium alloy bar axis；
2), on lathe use Double Tops point location mode fix aluminium alloy bar, the front top and back centre of lathe respectively with aluminum
Two holes, location of alloy bar coordinate；
3), the axis direction along two holes, location uses lathe that aluminium alloy bar is processed into part blank；
4), precision-machined parts blank, obtain precision-machined parts；
5), to precision-machined parts carry out electrochemistry sulphuric acid anodizing process, obtain final products.
The aluminum alloy rotary body precision component production technology removing processing oxidation rear surface spot the most according to claim 1,
It is characterized in that: in step 1), angle is 6 °.
The aluminum alloy rotary body precision component production technology removing processing oxidation rear surface spot the most according to claim 1,
It is characterized in that: the electrochemistry sulphuric acid anodizing described in step 5) processes and includes below scheme: part hanger, organic solvent remove
Oil, room temperature oil removing, alkali liquor erosion are washed, in cold water flush, gloss finish, cold water flush, sulphuric acid anodizing, cold water flush, ammonia
With, cold water flush, coloring, cold water flush, cbromate seal, cold water flush, be dried, wiping, deliver for a check, pack and put in storage.
4. produce work according to the aluminum alloy rotary body precision component removing processing oxidation rear surface spot described in claim 1 or 3
Skill, it is characterised in that: the described alkali liquor solution washed of erosion be concentration be the sodium hydroxide solution of 50～60g/L, its temperature is 50-60
℃；It is 4-6min that precision-machined parts carries out alkali liquor time of washing of erosion.
5. produce work according to the aluminum alloy rotary body precision component removing processing oxidation rear surface spot described in claim 1 or 3
Skill, it is characterised in that: the solution of described sulphuric acid anodizing is mixed solution, including the sulphuric acid that concentration is 160～180 g/L and
Concentration is the oxalic acid of 12～18g/L, mixed solution temperature ＜ 25 DEG C；The DC voltage of sulphuric acid anodizing is 14-16V, anode
Electric current density is 0.8-1.5A/d；It is 40-50min that precision-machined parts carries out the time of sulphuric acid anodizing.
The aluminum alloy rotary body precision component production technology removing processing oxidation rear surface spot the most according to claim 3,
It is characterized in that: described coloring flow process is light yellow coloring.
7. produce work according to the aluminum alloy rotary body precision component removing processing oxidation rear surface spot described in claim 1 or 3
Skill, it is characterised in that: the solution of described cbromate seal be concentration be the heavy complex acid potassium solution of 50-60g/L, its temperature is 80-
98℃；It is 5-10min that precision-machined parts carries out the time of complex acid salt closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444516.4A CN106041419B (en) | 2016-06-21 | 2016-06-21 | Go the aluminum alloy rotary body precision component production technology of processing oxidation rear surface spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444516.4A CN106041419B (en) | 2016-06-21 | 2016-06-21 | Go the aluminum alloy rotary body precision component production technology of processing oxidation rear surface spot |
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| Publication Number | Publication Date |
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| CN106041419A true CN106041419A (en) | 2016-10-26 |
| CN106041419B CN106041419B (en) | 2018-04-24 |
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| CN201610444516.4A Active CN106041419B (en) | 2016-06-21 | 2016-06-21 | Go the aluminum alloy rotary body precision component production technology of processing oxidation rear surface spot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115519327A (en) * | 2022-09-13 | 2022-12-27 | 赛尔科技(如东)有限公司 | Preparation process of material digging cutter and product thereof |
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| CN102371491A (en) * | 2010-08-12 | 2012-03-14 | 四川省自贡市海川实业有限公司 | Special fixture used for processing open slot on spatial dihedral angle slope of turbine blade |
| CN102658393A (en) * | 2012-04-13 | 2012-09-12 | 温岭市明华齿轮有限公司 | Spline milling device |
| CN203045082U (en) * | 2012-12-16 | 2013-07-10 | 綦江齿轮传动有限公司 | Tool for machining small helix angle spline on normal splined shaft roller machine |
| CN104096853A (en) * | 2014-06-27 | 2014-10-15 | 大连交通大学 | Method for processing inclined axle parts by common numerical control machine tool |
| CN104690375A (en) * | 2013-12-04 | 2015-06-10 | 铜陵市永生机电制造有限责任公司 | Method for turning thread by using thread lead screw |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371491A (en) * | 2010-08-12 | 2012-03-14 | 四川省自贡市海川实业有限公司 | Special fixture used for processing open slot on spatial dihedral angle slope of turbine blade |
| CN102658393A (en) * | 2012-04-13 | 2012-09-12 | 温岭市明华齿轮有限公司 | Spline milling device |
| CN203045082U (en) * | 2012-12-16 | 2013-07-10 | 綦江齿轮传动有限公司 | Tool for machining small helix angle spline on normal splined shaft roller machine |
| CN104690375A (en) * | 2013-12-04 | 2015-06-10 | 铜陵市永生机电制造有限责任公司 | Method for turning thread by using thread lead screw |
| CN104096853A (en) * | 2014-06-27 | 2014-10-15 | 大连交通大学 | Method for processing inclined axle parts by common numerical control machine tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115519327A (en) * | 2022-09-13 | 2022-12-27 | 赛尔科技(如东)有限公司 | Preparation process of material digging cutter and product thereof |
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| Publication number | Publication date |
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| CN106041419B (en) | 2018-04-24 |
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