CN108220580A - The intensifying method and intensifying device of a kind of annular workpieces hardness and wearability - Google Patents
The intensifying method and intensifying device of a kind of annular workpieces hardness and wearability Download PDFInfo
- Publication number
- CN108220580A CN108220580A CN201711485830.8A CN201711485830A CN108220580A CN 108220580 A CN108220580 A CN 108220580A CN 201711485830 A CN201711485830 A CN 201711485830A CN 108220580 A CN108220580 A CN 108220580A
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- China
- Prior art keywords
- annular workpieces
- laser beam
- wearability
- robot
- intensifying
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
Abstract
The present invention relates to the intensifying methods and intensifying device of a kind of annular workpieces hardness and wearability, belong to laser heat treatment technology field.The intensifying method includes：Fixed annular workpieces to be processed, determine position to be fortified；The surface at the position to be fortified is quickly scanned with high-power laser beam；After the surface at the position to be fortified is heated to target temperature, high-power laser beam leaves；The generating surface self-quench hardening of the annular workpieces；It unclamps and removes the annular workpieces.The intensifying device includes：Pass through the fixed annular workpieces of chuck as the revolution lathe of plant bottom case and on revolution lathe；Revolution lathe is connect with robot；Central control cabinet is connect respectively with laser generator and robot, and laser generator connection laser beam emitting head, laser beam emitting head is fixed on the end of robot；Laser beam emitting head is directed at the surface of annular workpieces.The present invention can reduce manufacturing cost, and reduce environmental pollution.
Description
Technical field
The present invention relates to the intensifying methods and intensifying device of a kind of annular workpieces hardness and wearability, belong to laser heat treatment
Technical field.
Background technology
The work condition environment of most annular workpieces is severe in mechanical equipment, long in machine service phase, therefore annular workpieces need phase
When high hardness and wearability.Current annular workpieces mainly using quenched or nitridation technique strengthening surface, improve hardness and
Wearability.However quenching and tempering hardness is low, wears no resistance, use scope is small；Although nitriding can increase substantially hardness and wearability,
But it is of high cost, environmental pollution is serious.
For problems existing for above-mentioned current reinforcement process or method, it is necessary to provide a kind of annular workpieces hardness and
The intensifying method and intensifying device of wearability, can reduce manufacturing cost, and reduce environmental pollution.
Invention content
The object of the present invention is to provide the intensifying methods and intensifying device of a kind of annular workpieces hardness and wearability, reduce life
Production manufacture cost, and reduce environmental pollution.
To achieve these goals, the technical solution adopted by the present invention is：
The intensifying method of a kind of annular workpieces hardness and wearability, includes the following steps,
1）, fixed annular workpieces to be processed, determine position to be fortified；
2）, quickly scan with high-power laser beam the surface at the position to be fortified；
3）, the position to be fortified surface be heated to target temperature after, high-power laser beam leaves；
4）, the annular workpieces generating surface self-quench hardening；
5）, unclamp and remove the annular workpieces.
Technical solution of the present invention further improvement lies in that：Step 2）In high-power laser beam spot width 5mm-
40mm, amount of lap 1mm-3mm.
Technical solution of the present invention further improvement lies in that：Step 2）In the sweep speed of high-power laser beam be
3mm/s -10mm/s。
Technical solution of the present invention further improvement lies in that：Step 3）In target temperature range be higher than austenitizing phase
Temperature and less than material melting temperature.
Technical solution of the present invention further improvement lies in that：Step 3）In target temperature range be 1000 DEG C -1300 DEG C.
The intensifying device of a kind of annular workpieces hardness and wearability including the revolution lathe as plant bottom case and is turning round
Pass through the fixed annular workpieces of chuck on lathe；Revolution lathe is connect with robot；Central control cabinet and laser generator and machine
Device people connects respectively, and laser generator connection laser beam emitting head, laser beam emitting head is fixed on the end of robot；Laser beam emitting head
It is directed at the surface of annular workpieces.
Use intensifying device of the present invention further improvement lies in that：Robot is automatic to control according to program prepared in advance
System is fixed on the laser beam emitting head action of the end of robot.
Use intensifying device of the present invention further improvement lies in that：The program of robot can be compiled according to specific target of strengthening
It writes control program and inputs.
By adopting the above-described technical solution, the technique effect that the present invention obtains has：
The present invention is realized using the method that the laser beam of high power density carries out Surface heat-treatent for annular workpieces surface to ring
The reinforcing of class workpiece hardness and wearability.The present invention uses the surface of laser beam flying annular workpieces, and thermal treatment rate is tradition
More than 4 times of technique, greatly accelerate reinforcing speed, save reinforcing cost；And thinner harder hardened layer can also be obtained,
The Crystallite Sizes On The Surface of annular workpieces improves 2-3 grades, and hardness improves more than 3HRC, and wearability improves more than 50%.
Laser quenching only is carried out to the surface at the position to be fortified of the annular workpieces in the present invention, oxide layer is shallow, workpiece
It deforms small, it is possible to reduce allowance reduces the cost of raw material.Using surface self-quench hardening in the present invention, due to heat transfer
Effect, the matrix in cold conditions make it cool down rapidly, and hardness and wearability significantly improve；And entire quenching process is without any dirt
Dye, avoids environmental pollution.
The spot size of laser beam, amount of lap, sweep speed are the direct of decision high power density laser beam in the present invention
Parameter；The spot size of specific laser beam, amount of lap, sweep speed are set, can accurately be realized to the annular workpieces
The heat treatment efficiency on the surface at position to be fortified.
The surface at the position to be fortified of heretofore described annular workpieces is heated target temperature range, can make described to be fortified
The rapid austenitizing in surface at position is the follow-up basis realized ideal quench effect, improve hardness and wearability；It and can be with
Be heated target temperature by the surface at the position to be fortified for specifically controlling the annular workpieces, it is possible to it is accurate determine it is strong after quenching
Change the intensity of portion faces and the depth of quenching.
The intensifying device of annular workpieces hardness and wearability provided by the invention, can be under the control of robot program certainly
It is dynamic to complete to realize progress intensive treatment to the annular workpieces being fixed on chuck using laser heat treatment.
Heretofore described annular workpieces surface location to be fortified, annular workpieces surface to be fortified need to obtain
Hardness level, hardening depth can be input to the center that robot and laser generator connect by writing control program and control
After cabinet processed, the laser beam emitting head operating position of robot end is controlled by robot, laser is controlled to send out by laser generator
The power density for the laser beam that hair is penetrated is penetrated, makes laser beam automatic for annular workpieces position to be fortified according to laser reinforcing process
Quenching.
Description of the drawings
Fig. 1 is the intensifying method flow chart of the present invention；
Fig. 2 is the intensifying device schematic diagram of the present invention；
Wherein, 1, revolution lathe, 2, chuck, 3, annular workpieces, 4, laser beam emitting head, 5, laser generator, 6, robot, 7, in
Entreat switch board.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further details the present invention：
The invention discloses the intensifying method and intensifying device of a kind of annular workpieces hardness and wearability, for hard to annular workpieces
The reinforcing of degree and wearability.Here is specific embodiment.
The present invention discloses the intensifying method of annular workpieces hardness and wearability a kind of first, and this method can be realized pair
The reinforcing of annular workpieces hardness and wearability, Fig. 1 are the flow chart of the intensifying method, and this method includes the following steps：
1）, fixed annular workpieces to be processed, determine position to be fortified；
2）, quickly scan with high-power laser beam the surface at the position to be fortified；
In the inventive solutions, the spot width 5mm-40mm of the high-power laser beam, amount of lap 1mm-3mm.
The sweep speed of the high-power laser beam is 3mm/s -10mm/s.Utilize the quick scan ring of the laser beam of high power density
The surface at the position to be fortified of class workpiece makes the surface heated fast at the position to be fortified；Using laser beam centrality and
High-energy, improves the accuracy of heat treatment, and improves follow-up quenching effect, and quenching position is made to obtain larger residual pressure
Stress improves the fatigue resistance and wearability of the annular workpieces.
3）, the position to be fortified surface be heated to target temperature after, high-power laser beam leaves；
In the inventive solutions, target temperature range is is less than material fusing point temperature higher than austenitizing phase transition temperature
Degree.Specifically, the target temperature range is 1000 DEG C -1300 DEG C, specific hardening heat can cope with requirement according to target and adjust
It is whole.
4）, the annular workpieces generating surface self-quench hardening；
When laser beam leaves the surface at the position to be fortified, due to the effect of heat transfer, the annular workpieces in cold conditions
Most of position makes the position to be fortified cool down the self-quench hardening for realizing generating surface rapidly, realizes the position to be fortified
The notable reinforcing of hardness and wearability.
5）, unclamp and remove the annular workpieces.
Further, the invention also discloses the intensifying device of a kind of annular workpieces hardness and wearability, which can
Realize the reinforcing to annular workpieces hardness and wearability, Fig. 2 is the schematic diagram of the intensifying device, including returning as plant bottom case
Favourable turn bed 1 and revolution lathe 1 on pass through 2 fixed annular workpieces 3 of chuck；Revolution lathe 1 is connect with robot 6；Center control
Cabinet 7 processed is connect respectively with laser generator 5 and robot 6, and laser generator 5 connects laser beam emitting head 4, and laser beam emitting head 4 is solid
It is scheduled on the end of robot 6；Laser beam emitting head 4 is directed at the surface of annular workpieces 3.
Specifically, realize that annular workpieces hardness and wearability are strong on the intensifying device of the annular workpieces hardness and wearability
It is as follows to change specific concrete operation step：
1st, annular workpieces to be fortified are fixed on the chuck 2 of revolution lathe 1
2nd, according to laser reinforcing process, set on central control cabinet 7 and robot 6 sweep speed, spot size, amount of lap,
The parameters such as hardening heat.In the inventive solutions, sweep speed is usually set to 3mm/s -10mm/s, sweep speed
It can specifically be adjusted according to hardening depth；Spot width is usually set to 5mm-40mm, and amount of lap is usually set to 1mm-3mm, quenches
Fiery temperature is usually set to 1000-1300 DEG C, and hardening heat also can specifically be adjusted according to hardness requirement.
3rd, 6 program of robot is write, is entered into robot 6.According to the position at the position to be fortified of annular workpieces to be fortified
Put the reinforcing hardness requirement of distribution and annular workpieces 3 to be fortified, hardening depth requires specifically to write.
In the inventive solutions, after quenching hardness general control in 40HRC -65HRC, hardening depth 0.5mm -
2mm；Specific range can be required according to technology and the material of annular workpieces determines.
4th, the program in robot 6 is run, robot 6 is acted by the Telescopic rotating of own mechanical arm, controls robot 6
The laser beam emitting head 4 of end carries out upper and lower, comprehensive action around around annular workpieces 3, realizes laser beam emitting head
The position to be fortified of 4 pairs of annular workpieces 3 precisely aligns；Robot 6 is accurate to control laser hair by controlling laser generator 5
It penetrates the open and close time of first 4 transmitting laser beam and laser beam emitting head 4 opens the power density of transmitting laser beam, sweep speed；
2 spinning movement of chuck on the control revolution lathe 1 of robot 6, drives annular workpieces 3 to rotate, cooperation robot 6 controls laser hair
The position to be fortified of annular workpieces 3 and precisely aligning for laser beam emitting head 4 are realized in the action for penetrating first 4.
5th, after completing annular workpieces laser reinforcing, chuck 2 is unclamped, by machine under annular workpieces.
The present invention passes through specific in the annular workpieces hardness and the intensifying device of wearability that are provided in technical solution of the present invention
Realize the intensifying method of annular workpieces hardness that technical solution of the present invention provides and wearability, using laser heat treatment technology, by force
Change annular workpieces surface quality, improve the hardness and wearability of annular workpieces, substitute traditional reinforcement technique, reduce production system
This is caused, reduces environmental pollution.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of intensifying method of annular workpieces hardness and wearability, it is characterised in that：Include the following steps,
1）, fixed annular workpieces to be processed, determine position to be fortified；
2）, quickly scan with high-power laser beam the surface at the position to be fortified；
3）, the position to be fortified surface be heated to target temperature after, high-power laser beam leaves；
4）, the annular workpieces generating surface self-quench hardening；
5）, unclamp and remove the annular workpieces.
2. the intensifying method of a kind of annular workpieces hardness according to claim 1 and wearability, it is characterised in that：Step 2）
In high-power laser beam spot width 5mm-40mm, amount of lap 1mm-3mm.
3. the intensifying method of a kind of annular workpieces hardness according to claim 1 and wearability, it is characterised in that：Step 2）
In high-power laser beam sweep speed be 3mm/s -10mm/s.
4. the intensifying method of a kind of annular workpieces hardness according to claim 1 and wearability, it is characterised in that：Step 3）
In target temperature range to be less than material melting temperature higher than austenitizing phase transition temperature.
5. the intensifying method of a kind of annular workpieces hardness according to claim 4 and wearability, it is characterised in that：Step 3）
In target temperature range be 1000 DEG C -1300 DEG C.
6. a kind of intensifying device of annular workpieces hardness and wearability, it is characterised in that：Including the turn-around machine as plant bottom case
Bed（1）With revolution lathe（1）On pass through chuck（2）Fixed annular workpieces（3）；Turn round lathe（1）With robot（6）Even
It connects；Central control cabinet（7）With laser generator（5）And robot（6）It connects respectively, laser generator（5）Connect Laser emission
Head（4）, laser beam emitting head（4）It is fixed on robot（6）End；Laser beam emitting head（4）It is directed at annular workpieces（3）Surface.
7. the intensifying device of a kind of annular workpieces hardness according to claim 6 and wearability, it is characterised in that：Robot
（6）According to the program write in advance, automatically control and be fixed on robot（6）End laser beam emitting head（4）Action.
8. the intensifying device of a kind of annular workpieces hardness according to claim 6 and wearability, it is characterised in that：Robot
（6）Interior program can write control program according to specific reinforcing target and input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485830.8A CN108220580A (en) | 2017-12-30 | 2017-12-30 | The intensifying method and intensifying device of a kind of annular workpieces hardness and wearability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485830.8A CN108220580A (en) | 2017-12-30 | 2017-12-30 | The intensifying method and intensifying device of a kind of annular workpieces hardness and wearability |
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| Publication Number | Publication Date |
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| CN108220580A true CN108220580A (en) | 2018-06-29 |
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ID=62646454
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| CN201711485830.8A Pending CN108220580A (en) | 2017-12-30 | 2017-12-30 | The intensifying method and intensifying device of a kind of annular workpieces hardness and wearability |
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Citations (6)
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|---|---|---|---|---|
| US20060102609A1 (en) * | 2004-11-17 | 2006-05-18 | Metal Improvement Company Llc | Active beam delivery system for laser peening and laser peening method |
| CN102649990A (en) * | 2012-05-05 | 2012-08-29 | 张家港市和昊激光科技有限公司 | Process for laser transformation hardening of shaft workpieces |
| CN103014301A (en) * | 2012-12-10 | 2013-04-03 | 山东滨州渤海活塞股份有限公司 | Laser-quenching technology for iron-based piston ring groove sides |
| CN205077097U (en) * | 2015-10-21 | 2016-03-09 | 上海炬辰激光技术有限公司 | Circular part laser hardening device |
| CN105448274A (en) * | 2015-12-21 | 2016-03-30 | 宜昌金宝乐器制造有限公司 | Laser heat treatment device of sound board iron plate string bridges |
| CN106119468A (en) * | 2016-08-19 | 2016-11-16 | 上海诺信汽车零部件有限公司 | Vacuum automobile pump rotor laser-quenching method |
-
2017
- 2017-12-30 CN CN201711485830.8A patent/CN108220580A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060102609A1 (en) * | 2004-11-17 | 2006-05-18 | Metal Improvement Company Llc | Active beam delivery system for laser peening and laser peening method |
| CN102649990A (en) * | 2012-05-05 | 2012-08-29 | 张家港市和昊激光科技有限公司 | Process for laser transformation hardening of shaft workpieces |
| CN103014301A (en) * | 2012-12-10 | 2013-04-03 | 山东滨州渤海活塞股份有限公司 | Laser-quenching technology for iron-based piston ring groove sides |
| CN205077097U (en) * | 2015-10-21 | 2016-03-09 | 上海炬辰激光技术有限公司 | Circular part laser hardening device |
| CN105448274A (en) * | 2015-12-21 | 2016-03-30 | 宜昌金宝乐器制造有限公司 | Laser heat treatment device of sound board iron plate string bridges |
| CN106119468A (en) * | 2016-08-19 | 2016-11-16 | 上海诺信汽车零部件有限公司 | Vacuum automobile pump rotor laser-quenching method |
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Application publication date: 20180629 |