CN109531281A - A kind of aluminium alloy ball processing technique - Google Patents
A kind of aluminium alloy ball processing technique Download PDFInfo
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- CN109531281A CN109531281A CN201810798315.3A CN201810798315A CN109531281A CN 109531281 A CN109531281 A CN 109531281A CN 201810798315 A CN201810798315 A CN 201810798315A CN 109531281 A CN109531281 A CN 109531281A
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- rolling
- processing
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000000227 grinding Methods 0.000 claims abstract description 122
- 238000005096 rolling process Methods 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 13
- 239000003082 abrasive agent Substances 0.000 claims description 10
- 239000007767 bonding agent Substances 0.000 claims description 10
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- 238000003801 milling Methods 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910001651 emery Inorganic materials 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000005275 alloying Methods 0.000 claims 1
- 239000008188 pellet Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/20—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
Abstract
The present invention discloses a kind of aluminium alloy ball processing technique, including cold-heading, rolling, heat treatment and classification grinding treatment process, aluminium alloy ball base is formed using cold heading technique, utilize the intermediate annulus and the two poles of the earth protrusion of rolling technology removal aluminium alloy ball base, the intensity and hardness of aluminium alloy ball base are improved using heat treatment process, and the requirement of the circularity and roughness of target steel ball is finally realized using classification grinding treatment process.Aluminium alloy ball processing technique of the present invention, high production efficiency, process-cycle are short, therefore are suitable for large-scale mass production；Meanwhile aluminium alloy ball producing process of the present invention the case where grinding wheel is blocked can occur to avoid aluminium alloy ball base in grinding process, and then grinding wheel cutting power is avoided to weaken the phenomenon that even grinding wheel can not be cut.
Description
Technical field
The invention belongs to aluminium alloy ball manufacturing technology fields, and in particular to a kind of aluminium alloy ball processing technique.
Background technique
Steel ball production technology mainly includes that blank molding, heat treatment process sphere and classification are ground the processing of this three categories
Technique.Wherein, the grinding process of steel ball plays a decisive role to the quality of steel ball.Currently, steel ball cooperates steel using machine for grinding steel ball
Ball grinding wheel for grinding carries out grinding action.Since the hardness of steel ball is higher, HRC60-66, therefore the grinding of steel ball generally can reach
It can carry out under high pressure, carrying out grinding under high pressure with grinding wheel using machine for grinding steel ball cooperation grinding steel ball can
Efficiently produce steel ball.Currently, the production technology of steel ball is more mature, mass production is had been able to.
Aluminium alloy ball is different from the mechanical performance of existing steel ball, and the light-weight of aluminium alloy ball, hardness are low, therefore, using steel
Ball milling ball machine obviously and is not suitable for existing grinding steel ball condition production aluminium alloy ball.This is primarily due to aluminium and had been ground
It easily adheres in journey grinding wheel, the hole of grinding wheel is blocked, so that grinding wheel loses cutting power；And then the circularity for seriously affecting aluminium ball is repaired
It is whole, it both can not meet the requirement of the circularity, roughness of aluminium alloy ball, and also can not meet the requirement being mass produced to efficiency.If
Using conventional aluminum alloy materials machining process for example vehicle, milling, plane, extruding, stretching, cutting, riveted, account for cut, bloom, rolling
Pressure etc. produces aluminium alloy ball, and production efficiency is low and higher cost, is also not suitable for mass production.
In view of the above technical problems, those skilled in the art need to find one kind and had not only adapted to efficiently produce, but also are able to satisfy
To the circularity of aluminium alloy ball, surface roughness, hardness requirement Product Process.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of aluminium alloy ball processing techniques, solve in the prior art
The technical problem that aluminium alloy ball production efficiency is low and aluminium alloy ball circularity and roughness cannot be up to standard.
In order to solve the above technical problems, the technical solution adopted by the present invention: a kind of aluminium alloy ball processing technique, feature exist
In: the following steps are included:
Cold-heading: the aluminium after cold-drawn is sent into cold headers and is straightened, aluminium alloy ball base is prepared；Wherein, cold-heading molding
Aluminium alloy ball base include intermediate annulus and the two poles of the earth protrusion；
Rolling: aluminium alloy ball base being delivered in tarry matter machine and is rolled, and aluminium closes after tarry matter machine is used for shaping cold-heading molding
Intermediate annulus and the two poles of the earth protrusion in gold goal base；Wherein, the revolving speed of light milling spindle is 80-100r/min, the operation of tarry matter machine
Pressure is 2000-4500KN；
Heat treatment: it is handled including solution treatment and artificial aging；Wherein, heating temperature is 500-505 when solution treatment
DEG C, soaking time 20-30min, heating temperature is 170-180 DEG C when artificial aging is handled, soaking time 8-9h；
Be classified grinding processing: the classification grinding processing successively includes that hard grind processing, milled processed and fine grinding are handled,
Aluminium alloy ball base after heat treatment is delivered in ball crusher and carries out classification grinding processing, it is final to obtain aluminium alloy ball, wherein
Hard grind processing: the linear velocity of the hard grind grinding wheel in ball crusher is 1.5-3m/s, single aluminium alloy ball base compression 28-
30N；
Milled processed: the linear velocity of the grinding wheel in ball crusher is 1.5-1.8m/s, single aluminium alloy ball base compression 25-
28N；
Fine grinding processing: the linear velocity of the finishing wheel in ball crusher is 0.9-1.2m/s, single aluminium alloy ball base compression 12-
14N；
Wherein, it rolls and is classified and aluminium alloy ball base is cooled down using coolant in grinding processing.
It preferably, include rolling rotating disc and rolling fixed disk, the rolling for the tarry matter machine of rolling operation
Rotating disc and tarry matter owner axis connection, the fixed rolling rotor plate of rolling rotating disc, the fixed rolling fixed plate of the rolling fixed disk,
The rolling rotor plate and rolling fixed plate are alloy-steel plate, are provided in the rolling rotor plate and rolling fixed plate
Several the first R slots of half arc, the diameter of the first R slot of half arc are 1.1-1.2 times of aluminium alloy ball base diameter, the first R of half arc
The depth of slot is 0.3-0.4 times of aluminium alloy ball base diameter.
Preferably, the ball crusher for being classified grinding processing includes grinding rotating disc and is ground fixed disk, described
Grinding rotating disc is connect with main shaft in ball crusher, is ground rotating disc fixed emery wheel, and the grinding fixed disk is fixed to be ground fixed plate,
The grinding fixed plate is alloy cast iron plate, is provided with several the 2nd R slots of half arc, institute in the grinding wheel and grinding fixed plate
The diameter for stating the 2nd R slot of half arc is equal to aluminium alloy ball base diameter, and the depth of the 2nd R slot of half arc is aluminium alloy ball base diameter
0.3-0.4 times, wherein grinding wheel includes any one in hard grind grinding wheel or grinding wheel or finishing wheel.
Preferably, the bonding agent for the hard grind grinding wheel of hard grind processing is vitrified bond, and abrasive material is silicon carbide mill
Material, the granularity of hard grind grinding wheel are 120-180 mesh.
It preferably, is resinoid bond for the bonding agent of the grinding wheel of milled processed, abrasive material is silicon carbide mill
Material, the granularity of grinding wheel are 400-600 mesh.
Preferably, the bonding agent for the finishing wheel in fine grinding processing is resinoid bond, and abrasive material is silicon carbide
Abrasive material, the granularity of finishing wheel are 4000-6000 mesh.
Preferably, the coolant is water when rolling operation；Coolant described in hard grind processing and milled processed is by TL-
9135 aluminium surface cleaning agents and water are mixed to form according to quality 1:9~99；Coolant described in fine grinding processing is kerosene.
Preferably, the changes phase of the tarry matter machine operating pressure includes that compression stage, truing phase and refinement are spherical
Stage, the tarry matter machine operating pressure described in compression stage are gradually incremented by, and the tarry matter machine operating pressure described in truing phase is kept not
Become, the tarry matter machine operating pressure described in refinement globular stage is gradually successively decreased.
Beneficial effects of the present invention: the present invention discloses a kind of aluminium alloy ball processing technique, including cold-heading, rolling, heat treatment,
And classification grinding treatment process, aluminium alloy ball base is formed using cold heading technique, utilizes rolling technology removal aluminium alloy ball base
Intermediate annulus and the two poles of the earth protrusion, the intensity and hardness of aluminium alloy ball base are improved using heat treatment process, finally utilizes and divides
Grade is ground treatment process to realize the requirement of the circularity and roughness of target steel ball.Aluminium alloy ball of the present invention processes work
Skill, high production efficiency, process-cycle are short, therefore are suitable for large-scale mass production；Meanwhile aluminium alloy ball production of the present invention
Technique the case where grinding wheel is blocked can occur to avoid aluminium alloy ball base in grinding process, and then grinding wheel cutting power is avoided to weaken
The phenomenon that even grinding wheel can not be cut.
Detailed description of the invention
Fig. 1 is aluminium alloy ball processing technique flow chart；
Fig. 2 is the structural schematic diagram for rolling rotating disc in tarry matter machine and rolling fixed disk component；
Fig. 3 is the structural schematic diagram of the first R slot in tarry matter machine；
Fig. 4 is the trend distribution map of rolling stage tarry matter machine operating pressure size；
Fig. 5 is the structural schematic diagram for being ground rotating disc in ball crusher and being ground fixed disk component；
Fig. 6 is the structural schematic diagram of the 2nd R slot in ball crusher；
Appended drawing reference in figure, 1- roll rotating disc；2- rolls fixed disk；3- light milling spindle；4- rolls rotor plate；5- rolling
Pressing fixed board；The first R slot of 6-；7- is ground rotating disc；8- is ground fixed disk；9- ball crusher main shaft；10- grinding wheel；11- grinding is fixed
Plate；The 2nd R slot of 12-；The diameter of the first R slot of half arc of D-；The depth of the first R slot of half arc of H-；The 2nd R slot of-half arc of D '
Diameter；The depth of the 2nd R slot of-half arc of H '.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
A kind of aluminium alloy ball processing technique, as shown in Figure 1, comprising the following steps:
Cold-heading: the aluminium after cold-drawn is sent into cold headers and is straightened, aluminium alloy ball base is prepared；Wherein, cold-heading molding
Aluminium alloy ball base include intermediate annulus and the two poles of the earth protrusion.In the present embodiment, cold headers involved in cold-heading process are existing
Technology, for example, by using JBT 6583-1993 high speed steel ball automatic cold header.
Rolling: aluminium alloy ball base being delivered in tarry matter machine and is rolled, and aluminium closes after tarry matter machine is used for shaping cold-heading molding
Intermediate annulus and the two poles of the earth protrusion in gold goal base；Wherein, the revolving speed of light milling spindle is 80-100r/min, in the present embodiment,
It is preferred that the revolving speed of light milling spindle is 90r/min, tarry matter machine operating pressure is 2000-4500KN.As shown in Figures 2 and 3, tarry matter machine
Including rolling rotating disc 1 and rolling fixed disk 2.Wherein, rolling rotating disc 1 is connect with light milling spindle 3, rolls rotating disc 1
Fixed rolling rotor plate 4, the fixed rolling fixed plate 5 of rolling fixed disk 2.It is equal that rotating disc 1, rolling fixed disk 2 are rolled in tarry matter machine
For the prior art, the present invention improves rolling rotor plate 4 and rolling fixed plate 5.Specifically, rolling rotor plate and
Rolling fixed plate is the alloy-steel plate after heat treatment, and rolls in rotor plate and rolling fixed plate and be provided with several half arcs
First R slot 6, shape and the aluminium alloy ball-billet shape shape of the first R slot of half arc match.Specifically, the diameter of the first R slot of half arc
D is 1.1-1.2 times of aluminium alloy ball base diameter, and the depth H of the first R slot of half arc is 0.3-0.4 times of aluminium alloy ball base diameter.
Aluminium alloy ball base is delivered in the first R slot by transfer dish, and rolling turn disc, and then band are driven after the rotation of light milling spindle
Dynamic rolling rotor plate rotation.Rolling fixed disk moves back and forth in the axial direction thereof, and rolling fixed disk passes through hydraulic system reality
Now move back and forth.In rolling operation, rolls rotor plate and roll fixed plate to the aluminium alloy ball base being located inside the first R slot
Apply pressure, the size of pressure is controlled by pressure regulator valve hydraulic in hydraulic system.Also belonged to using hydraulic pressure regulator valve control pressure size
It is no longer repeated in the prior art, the present embodiment.The variation of tarry matter machine operating pressure includes 3 stages, specially extruding rank
Section, truing phase and refinement globular stage.As shown in figure 4, tarry matter machine operating pressure is gradually incremented by compression stage, that is, press
Power P gradually rises up to 4500KN from 2000KN, by the above-mentioned rolling stage, the intermediate annulus of aluminium alloy ball base and the two poles of the earth protrusion
It is extruded, and combines together with aluminium alloy ball base.Enter after the intermediate annulus and the two poles of the earth protrusion of aluminium alloy ball base disappear whole
In the shape stage, in truing phase, tarry matter machine operating pressure P is remained unchanged, i.e., pressure is maintained at 4500KN, passes through above-mentioned rolling rank
Section, aluminium alloy ball base is substantially at spherical shape.Enter refinement globular stage after aluminium alloy ball base is at spherical shape, refine globular stage,
Tarry matter machine operating pressure is gradually successively decreased, i.e. pressure P is reduced to 2000KN from 4500KN, and then to the spherical shape of aluminium alloy steel ball ball base
Further finishing.It should be noted that in the rolling process, to prevent aluminium alloy ball base from superheating phenomenon occur, rolling process is needed
It to be cooled down using coolant.In the present embodiment, the coolant in rolling process is water.
Heat treatment: it is handled including solution treatment and artificial aging.Solution treatment is that alloy is heated to high temperature austenite
Area's heat preservation makes rapid cooling after superfluous be mutually substantially dissolved in solid solution, to obtain the heat treatment process of supersaturated solid solution.When
Effect processing refers to workpiece through solution treatment, after cold plastic deformation or casting, forging, places at relatively high temperatures or room temperature keeps it
Performance, shape, the heat treatment process of size time to time change.For the intensity and hardness requirement for meeting aluminium alloy ball, aluminium alloy
Ball base needs to carry out solution treatment and ageing treatment.Wherein, heating temperature is 500-505 DEG C when solution treatment, and soaking time is
30min, heating temperature is 170-180 DEG C when artificial aging is handled, soaking time 8h.By above-mentioned heat treatment process, aluminium is closed
The intensity and hardness of gold goal base increase, and hardness is greater than HB140.
Be classified grinding processing: classification grinding processing is the key that aluminium alloy ball milling is cut, and classification grinding processing successively includes hard
Mill processing, milled processed and fine grinding processing, and this 3 kinds of grinding processing are centerless grinding.By the aluminium alloy ball after heat treatment
Base, which is delivered in ball crusher, carries out classification grinding processing, can obtain the aluminium alloy ball for meeting circularity and roughness standards.Such as
Shown in Figures 5 and 6, the ball crusher for being classified grinding processing includes grinding rotating disc 7 and grinding fixed disk 8, is ground rotating disc 7
It is connect with ball crusher main shaft 9, is ground 7 fixed emery wheel 10 of rotating disc, processing stage is ground according to classification, grinding wheel can choose hard grind
Grinding wheel, grinding wheel or finishing wheel.It is ground the fixed grinding fixed plate 11 of fixed disk 8, after grinding fixed plate 11 is heat treatment
Several half arcs second are provided in alloy cast iron plate, hard grind grinding wheel or grinding wheel or finishing wheel and grinding fixed plate 11
The diameter D ' of R slot 12, the 2nd R slot of half arc is equal to aluminium alloy ball base diameter, the depth H of the 2nd R slot of half arc ' it is aluminium alloy ball
0.3-0.4 times of base diameter.
Although aluminium alloy ball base passes through heat treatment process, the hardness of aluminium alloy ball base is still lower.Therefore, pressure pair
Aluminium alloy ball base is affected.For existing grinding steel ball technology, pressure is big, and grinding efficiency is high.And for aluminium alloy
For ball base, pressure is excessive, and sphere deformation is big, and spheroid form is not easy to correct, and pressure is too small, and grinding efficiency is low.In this regard, of the invention
The grinding wheel and coolant liquid of the technological parameter being ground in treatment process and different grinding stages are improved again.
Hard grind processing: the linear velocity of the hard grind grinding wheel in ball crusher is 1.5-3m/s, and in the present embodiment, preferred linear velocity is
2m/s.Single aluminium alloy ball base compression 28-30N；The bonding agent of hard grind grinding wheel for hard grind processing is vitrified bond, abrasive material
For silicon carbide abrasive, the granularity of hard grind grinding wheel is 120-180 mesh.In the present embodiment, the granularity of hard grind grinding wheel is 150 mesh.
After hard grind is handled, processing circularity < 0.015mm of aluminium alloy ball base.
Milled processed: the linear velocity of the grinding wheel in ball crusher is 1.5-1.8m/s, in the present embodiment, preferred linear velocity
For 1.7m/s.Single aluminium alloy ball base compression 25-28N；The bonding agent of the grinding wheel for milled processed is resin knot
Mixture, abrasive material are silicon carbide abrasive, and the granularity of grinding wheel is 400-600 mesh.In the present embodiment, the granularity of grinding wheel
For 500 mesh.After milled processed, processing circularity < 0.01mm of aluminium alloy ball base.
In hard grind and milled processed technique, the coolant of use is by TL-9135 aluminium surface cleaning agent and water according to matter
Amount 1:9~99 are mixed to form.In the present embodiment, the matched proportion density of TL-9135 aluminium surface cleaning agent and water is 1:19.This kind of cooling
Cooling, lubrication, cleaning are played the role of in agent in grinding process, avoid aluminium skimmings in grinding process from blocking grinding wheel, cut down grinding wheel
Cutting power.
Fine grinding processing: the linear velocity of the finishing wheel in ball crusher is 0.9-1.2m/s, in the present embodiment, preferred linear velocity
For 1.0m/s.Single aluminium alloy ball base compression 12-14N；Bonding agent for the finishing wheel in fine grinding processing is resin
Bonding agent, abrasive material are silicon carbide abrasive, and the granularity of finishing wheel is 4000-6000 mesh.In the present embodiment, of finishing wheel
Granularity is 5000 mesh.It refines in treatment process, the coolant used is kerosene.After fine grinding is handled, the processing of aluminium alloy ball
Circularity≤0.01mm, surface roughness≤0.2 μm.
The present invention realizes aluminium alloy ball batch by the improvement to aluminium alloy ball processing technique and to the improvement of grinding wheel
Quantization production, high production efficiency, process-cycle are short, while aluminium alloy ball is not in showing of being blocked of grinding wheel in process
As, and then improve the cutting power of grinding wheel.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of aluminium alloy ball processing technique, it is characterised in that: the following steps are included:
Cold-heading: the aluminium after cold-drawn is sent into cold headers and is straightened, aluminium alloy ball base is prepared；Wherein, the aluminium of cold-heading molding
Alloying pellet base includes intermediate annulus and the two poles of the earth protrusion；
Rolling: aluminium alloy ball base being delivered in tarry matter machine and is rolled, and tarry matter machine is used for aluminium alloy ball after shaping cold-heading molding
Intermediate annulus and the two poles of the earth protrusion in base；Wherein, the revolving speed of light milling spindle is 80-100r/min, tarry matter machine operating pressure
For 2000-4500KN；
Heat treatment: it is handled including solution treatment and artificial aging；Wherein, heating temperature is 500-505 DEG C when solution treatment, is protected
The warm time is 20-30min, and heating temperature is 170-180 DEG C when artificial aging is handled, soaking time 8-9h；
Be classified grinding processing: the classification grinding processing successively includes hard grind processing, milled processed and fine grinding processing；It will be hot
Treated, and aluminium alloy ball base is delivered in ball crusher carries out classification grinding processing, final to obtain aluminium alloy ball, wherein
Hard grind processing: the linear velocity of the hard grind grinding wheel in ball crusher is 1.5-3m/s, single aluminium alloy ball base compression 28-30N；
Milled processed: the linear velocity of the grinding wheel in ball crusher is 1.5-1.8m/s, single aluminium alloy ball base compression 25-28N；
Fine grinding processing: the linear velocity of the finishing wheel in ball crusher is 0.9-1.2m/s, single aluminium alloy ball base compression 12-14N；
Wherein, it rolls and is classified and aluminium alloy ball base is cooled down using coolant in grinding processing.
2. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: the tarry matter for rolling operation
Machine includes rolling rotating disc and rolling fixed disk, the rolling rotating disc and tarry matter owner axis connection, and rolling rotating disc is fixed
Rotor plate is rolled, the fixed rolling fixed plate of the rolling fixed disk, the rolling rotor plate and rolling fixed plate are alloy
Be provided with several the first R slots of half arc in steel plate, the rolling rotor plate and rolling fixed plate, the first R slot of half arc it is straight
Diameter is 1.1-1.2 times of aluminium alloy ball base diameter, and the depth of the first R slot of half arc is 0.3-0.4 times of aluminium alloy ball base diameter.
3. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: for being classified described in grinding processing
Ball crusher includes that grinding rotating disc and grinding fixed disk, the grinding rotating disc are connect with main shaft in ball crusher, grinding rotation
Disk fixed emery wheel, the fixed grinding fixed plate of the grinding fixed disk, the grinding fixed plate are alloy cast iron plate, the grinding wheel with
And several the 2nd R slots of half arc are provided in grinding fixed plate, it is straight that the diameter of the 2nd R slot of half arc is equal to aluminium alloy ball base
Diameter, the depth of the 2nd R slot of half arc are 0.3-0.4 times of aluminium alloy ball base diameter；Wherein, grinding wheel includes hard grind grinding wheel or grinding
Any one in grinding wheel or finishing wheel.
4. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: the hard grind for hard grind processing
The bonding agent of grinding wheel is vitrified bond, and abrasive material is silicon carbide abrasive, and the granularity of hard grind grinding wheel is 120-180 mesh.
5. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: the grinding for milled processed
The bonding agent of grinding wheel is resinoid bond, and abrasive material is silicon carbide abrasive, and the granularity of grinding wheel is 400-600 mesh.
6. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: for the essence in fine grinding processing
The bonding agent of grinding abrasive disk is resinoid bond, and abrasive material is silicon carbide abrasive, and the granularity of finishing wheel is 4000-6000 mesh.
7. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: the coolant is when rolling operation
Water；Coolant described in hard grind processing and milled processed is mixed by TL-9135 aluminium surface cleaning agent and water according to quality 1:9~99
It closes and is formed；Coolant described in fine grinding processing is kerosene.
8. a kind of aluminium alloy ball processing technique according to claim 1, it is characterised in that: the change of the tarry matter machine operating pressure
The change stage includes compression stage, truing phase and refinement globular stage, and the tarry matter machine operating pressure described in compression stage is gradually
Be incremented by, the tarry matter machine operating pressure described in truing phase remains unchanged, refinement globular stage described in tarry matter machine operating pressure by
Gradually successively decrease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798315.3A CN109531281A (en) | 2018-07-19 | 2018-07-19 | A kind of aluminium alloy ball processing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798315.3A CN109531281A (en) | 2018-07-19 | 2018-07-19 | A kind of aluminium alloy ball processing technique |
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| CN109531281A true CN109531281A (en) | 2019-03-29 |
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| CN201810798315.3A Pending CN109531281A (en) | 2018-07-19 | 2018-07-19 | A kind of aluminium alloy ball processing technique |
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| CN101799048A (en) * | 2010-03-08 | 2010-08-11 | 江苏力星钢球有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| US20110177760A1 (en) * | 2008-10-03 | 2011-07-21 | Yutaka Tanaka | Spherical body polishing apparatus, method for polishing spherical body and method for manufacturing spherical member |
| CN102335842A (en) * | 2010-07-16 | 2012-02-01 | 贵州红林机械有限公司 | Grinding method of aluminum alloy workpiece |
| CN107130181A (en) * | 2017-06-22 | 2017-09-05 | 合肥力和机械有限公司 | A kind of household electrical appliances special bearing steel ball and preparation method thereof |
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| CN101285506A (en) * | 2008-06-05 | 2008-10-15 | 江苏力星钢球有限公司 | High-grade car precision bearing steel ball fabrication process |
| US20110177760A1 (en) * | 2008-10-03 | 2011-07-21 | Yutaka Tanaka | Spherical body polishing apparatus, method for polishing spherical body and method for manufacturing spherical member |
| CN101514726A (en) * | 2009-04-02 | 2009-08-26 | 江苏力星钢球有限公司 | Once grinding technology of steel ball for high-grade car transmission shaft |
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