CN105921939A - Repair method for iron base friction material - Google Patents
Repair method for iron base friction material Download PDFInfo
- Publication number
- CN105921939A CN105921939A CN201610279263.XA CN201610279263A CN105921939A CN 105921939 A CN105921939 A CN 105921939A CN 201610279263 A CN201610279263 A CN 201610279263A CN 105921939 A CN105921939 A CN 105921939A
- Authority
- CN
- China
- Prior art keywords
- friction material
- cladding
- iron base
- frictional disk
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B23P6/00—Restoring or reconditioning objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a repair method for an iron base friction material. Firstly, the wear shape and layout of a friction plate are analyzed to formulate a moving path of a laser head; then, a wear cutting groove and a furrow are corrected to become regular and planar; an iron base powder metallurgy cladding material is paved for laser cladding; and finally, the cladding position of the friction plate is secondarily processed to guarantee the flatness, parallelism and size tolerance requirements of the friction plate. The invention proposes the effective repair method for the iron base friction material, so that the friction material has such characteristics as good adhesiveness, high flatness, simple process and good wear resistance.
Description
Technical field
The invention belongs to endless-track vehicle transmission field brake technological design field, be specifically related to one and repair for iron-based friction material
Compound recipe method.
Background technology
High-energy-density friction driven system is the key of high performance power transmission, and it is noteworthy characterized by rotating speed high-power, high, Cu base,
Fe base powder metallurgy friction pair is widely used in the transmission field of endless-track vehicle due to the wearability of its excellence and higher thermal capacitance.
Due to the working environment of its high-speed overload, frictional disk can produce the abrasion of radially non-uniform Distribution, including adhesiveness phosphorus sheet, plough
Ditch and cutting ditch damage.In the face of the biggest situation, when for smaller frictional disk, we can scrape former friction material,
Again sintering, and for industry brake, often have bigger frictional disk, so operation is wasted time and energy, also
Substantial amounts of waste can be caused.The restorative procedure that the present invention provides well solves current problem so that friction material caking property
Good, flatness height, the features such as technique is simple, wearability is good
Summary of the invention
The technical problem to be solved in the present invention is: being can not to seamlessly transit to solve bullet groove in prior art, pumping efficiency is low
Etc. problem, the assembling of rotating disk, mobile dish and pellet is made to be simplified by complexity, be easier to operate to, it is to avoid in motor process
Repeat constraint, shortens the design cycle of product.
The technical solution used in the present invention is: a kind of for iron-based friction material restorative procedure, implementation step is as follows:
Step one, the shape analyzing frictional disk friction material fray and distribution, according to the mobile road analyzing initial setting laser head
Line；
Step 2, the cutting ditch of formation of wearing and tearing according to the frictional disk friction material analyzing acquisition in step one and the shape of ditch dug with a plow, profit
It is modified processing to abration position with truing tool so that it is regularization and planarizing, removes some burrs and little projection, so
The friction material that is not worn and cladding material contact area can be made bigger, and caking property is more preferable；
Step 3, lay iron-based powder cladding material at the abration position handled well；
The mobile route of the laser head that step 4, foundation set before, inputs the control panel of mechanical hand by machining code, swashs
Luminous power is 900W, and powder feeding voltage is 14V, and scanning speed is 7mm/s, road spacing 0.5mm, and laser spot diameter is
2.50mm, powder feeding gas (N2) air pressure is 0.3MPa, and carrier gas flux is 600L/h, and protection gas (N2) air pressure is 0.1MPa；
Step 5, carrying out laser repairing work, the cladding layer thickness ultimately formed exceedes the 2mm of wear extent, as below
Secondary operations surplus；
Step 6, carry out hardness determination, similar to the frictional layer material hardness of former direct sintering, it is thus achieved that the frictional disk repaired.
Present invention advantage compared with prior art is:
(1) present invention is directed at the irregular contact surface of surface profile to be modeled, it is proposed that the techniqueflow of complete set,
Analysis means and technical support is provided for the most relevant research；
(2) present invention can be for the contact analysis admittedly of two contact surfaces without lubricating oil, it is also possible to be used for contacting table
The solid-liquid contact analysis of lubricating oil, applied range are contained in face；
(3) present invention is without dismantling brake bush, and method is simple, low cost, and can efficiently and accurately obtain and rub
The wear extent of pad.
Accompanying drawing explanation
Fig. 1 is the inventive method flowchart；
Fig. 2 is middle friction tray wear map of the present invention, and wherein, 1 represents cutting ditch, and 2 represent ditch dug with a plow；
Fig. 3 is laser melting coating workbench schematic diagram in the present invention, and wherein, 3 represent cladding layer, and 4 represent protective gas, 5 tables
Showing laser beam, 6 represent precoated shet, and 7 represent molten bath, and 8 represent substrate, and 9 represent traffic direction；
Fig. 4 is to cut ditch and ditch dug with a plow process figure in the present invention；
Fig. 5 is laser melting coating iron figure in the present invention；
Fig. 6 is laser repairing testing stand sketch in the present invention；
Detailed description of the invention
In order to understand the technical characterstic of explanation this programme, below by a specific embodiment, and combine its accompanying drawing to we
Case is illustrated.The example that accompanying drawing describes is exemplary, it is intended to be used for explaining the present invention, and it is not intended that to the present invention's
Limit.
As it is shown in figure 1, a kind of as follows for iron-based friction material restorative procedure specific implementation method:
Step one, the shape analyzing frictional disk friction material fray and distribution, as in figure 2 it is shown, swash according to analyzing initial setting
The mobile route of shaven head；
Step 2, the cutting ditch of formation of wearing and tearing according to the frictional disk friction material analyzing acquisition in step one and the shape of ditch dug with a plow, profit
It is modified processing to abration position with truing tool so that it is regularization and planarizing, removes some burrs and little projection, such as figure
Shown in 4, the friction material that is not worn and cladding material contact area so can be made bigger, caking property is more preferable；
Step 3, the surface deposits cleaning first will worn and torn in ditch, needed thoroughly to be beaten by wear surface with brush before cladding
Mill, in order to preferably merge with cladding material, then lays iron-based powder cladding material, this powder at the abration position handled well
During cladding, case hardness is up to 60HRC；
The mobile route of the laser head that step 4, foundation set before, inputs the control panel of mechanical hand by machining code, swashs
Luminous power is 900W, and powder feeding voltage is 14V, and scanning speed is 7mm/s, road spacing 0.5mm, and laser spot diameter is
2.50mm, powder feeding gas (N2) air pressure is 0.3MPa, and carrier gas flux is 600L/h, and protection gas (N2) air pressure is 0.1MPa,
As shown in Figure 3 and Figure 6；
Step 5, carrying out laser repairing work, the cladding layer thickness ultimately formed exceedes the 2mm of wear extent, as below
Secondary operations surplus, such as Fig. 5；
Step 6, on grinding machine, machining area is carried out grinding, to ensure flatness and the depth of parallelism of frictional layer；
Step 7, carrying out hardness determination, case hardness is at about 60.8 ± 0.5HRC, hard with the frictional layer material of former direct sintering
Spend similar, it is thus achieved that the frictional disk repaired.
The content not being described in detail in description of the invention belongs to prior art known to professional and technical personnel in the field.
Claims (1)
1. one kind is used for iron-based friction material restorative procedure, it is characterised in that realize step as follows:
Step one, the shape analyzing frictional disk friction material fray and distribution, according to the mobile road analyzing initial setting laser head
Line；
Step 2, the cutting ditch of formation of wearing and tearing according to the frictional disk friction material analyzing acquisition in step one and the shape of ditch dug with a plow, profit
It is modified processing to abration position with truing tool so that it is regularization and planarizing, removes some burrs and little projection；
Step 3, lay iron-based powder cladding material at the abration position handled well；
The mobile route of the laser head that step 4, foundation set before, inputs the control panel of mechanical hand by machining code, swashs
Luminous power is 900W, and powder feeding voltage is 14V, and scanning speed is 7mm/s, road spacing 0.5mm, and laser spot diameter is
2.50mm, powder feeding gas (N2) air pressure is 0.3MPa, and carrier gas flux is 600L/h, and protection gas (N2) air pressure is 0.1MPa；
Step 5, carrying out laser repairing work, the cladding layer thickness ultimately formed exceedes the 2mm of wear extent, as below
Secondary operations surplus；
Step 6, carry out hardness determination, similar to the frictional layer material hardness of former direct sintering, it is thus achieved that the frictional disk repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279263.XA CN105921939A (en) | 2016-04-28 | 2016-04-28 | Repair method for iron base friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279263.XA CN105921939A (en) | 2016-04-28 | 2016-04-28 | Repair method for iron base friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105921939A true CN105921939A (en) | 2016-09-07 |
Family
ID=56836885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610279263.XA Pending CN105921939A (en) | 2016-04-28 | 2016-04-28 | Repair method for iron base friction material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105921939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777807A (en) * | 2017-01-13 | 2017-05-31 | 北京航空航天大学 | A kind of random size distribution 3D finite element modelings of powder metallurgy and emulation mode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560478A (en) * | 2012-02-29 | 2012-07-11 | 中联重科股份有限公司 | Laser cladding method |
| JP2012192436A (en) * | 2011-03-16 | 2012-10-11 | Osaka Municipal Technical Research Institute | Laser cladding method |
| CN104141131A (en) * | 2014-08-01 | 2014-11-12 | 常州南车柴油机零部件有限公司 | Process for repairing piston ring groove |
| CN105039676A (en) * | 2015-08-21 | 2015-11-11 | 江苏大学 | Method and device for compositing and enhancing metal material through lasers |
| CN105127420A (en) * | 2015-05-04 | 2015-12-09 | 航星利华(北京)科技有限公司 | Method for repairing metal parts through diffuse printing lasers |
| CN105177569A (en) * | 2015-10-13 | 2015-12-23 | 武汉华工激光工程有限责任公司 | Laser repairing method for ductile iron surface |
| US20160067825A1 (en) * | 2014-09-10 | 2016-03-10 | Caterpillar Inc. | Laser cladding mechanical face seals |
-
2016
- 2016-04-28 CN CN201610279263.XA patent/CN105921939A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012192436A (en) * | 2011-03-16 | 2012-10-11 | Osaka Municipal Technical Research Institute | Laser cladding method |
| CN102560478A (en) * | 2012-02-29 | 2012-07-11 | 中联重科股份有限公司 | Laser cladding method |
| CN104141131A (en) * | 2014-08-01 | 2014-11-12 | 常州南车柴油机零部件有限公司 | Process for repairing piston ring groove |
| US20160067825A1 (en) * | 2014-09-10 | 2016-03-10 | Caterpillar Inc. | Laser cladding mechanical face seals |
| CN105127420A (en) * | 2015-05-04 | 2015-12-09 | 航星利华(北京)科技有限公司 | Method for repairing metal parts through diffuse printing lasers |
| CN105039676A (en) * | 2015-08-21 | 2015-11-11 | 江苏大学 | Method and device for compositing and enhancing metal material through lasers |
| CN105177569A (en) * | 2015-10-13 | 2015-12-23 | 武汉华工激光工程有限责任公司 | Laser repairing method for ductile iron surface |
Non-Patent Citations (1)
| Title |
|---|
| 郭瑜茹: "《光机电一体化技术应用100例》", 30 April 2010, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777807A (en) * | 2017-01-13 | 2017-05-31 | 北京航空航天大学 | A kind of random size distribution 3D finite element modelings of powder metallurgy and emulation mode |
| CN106777807B (en) * | 2017-01-13 | 2020-09-25 | 北京航空航天大学 | Powder metallurgy random particle size distribution 3D finite element modeling and simulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Aurich et al. | High-performance dry grinding using a grinding wheel with a defined grain pattern | |
| Maruda et al. | Structural and microhardness changes after turning of the AISI 1045 steel for minimum quantity cooling lubrication | |
| US9346128B2 (en) | Method for producing a pattern of depressions in the friction surface of a friction component and a friction component for a frictionally operating device having such a pattern of depressions | |
| Pavel et al. | Effect of tool wear on surface finish for a case of continuous and interrupted hard turning | |
| Pinto et al. | Simulation for optimizing grain pattern on engineered grinding tools | |
| CN105195845A (en) | Manufacturing method of copper-based brazing filler metal laser brazing cubic boron nitride grinding particles | |
| Chakule et al. | Evaluation of the effects of machining parameters on MQL based surface grinding process using response surface methodology | |
| CN104759624A (en) | Cutter abrasion repairing method | |
| CN104313575A (en) | Preparation method of iron-base titanium carbide laser cladding material | |
| Zhi et al. | Grinding motor energy saving method based on material removal model in rail grinding processes | |
| CN107779859B (en) | A kind of preparation method of milling train liner plate | |
| Latypov et al. | Technology of hardening plowshares by electrocontact welding using waste from tool production | |
| CN105921939A (en) | Repair method for iron base friction material | |
| CN103924238A (en) | Method for laser cladding Ni-based alloy+B4C wild phase on Q550 steel | |
| Nadolny et al. | The effects of wear upon the axial profile of a grinding wheel in the construction of innovative grinding wheels for internal cylindrical grinding | |
| Khafizov | Processing methods with imposing of electric field at low-waste division of materials | |
| CN102990531A (en) | Self-lubricating grinding tool orderly brazed with ultra-hard grinding materials on multi-layers | |
| CN114654383B (en) | Precise trimming method for concave arc metal bond diamond grinding wheel | |
| CN114395761B (en) | Method for improving antifriction and wear-resistant performance of matrix | |
| CN208067761U (en) | A kind of micro- texture guide rail of combination | |
| CN110315216A (en) | The method of laser processing workpiece and its application in cutter manufacture | |
| CN103602372A (en) | Novel processing cutting fluid | |
| CN103692144A (en) | Method for repairing components by aid of mixtures of tungsten carbide particles and resin | |
| CN210798974U (en) | Scraper structure for shield machine | |
| Kinalkar et al. | A review on various cooling system employed in grinding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
|
| RJ01 | Rejection of invention patent application after publication |