CN117862694A - High-strength metal cutting processing technology - Google Patents
High-strength metal cutting processing technology Download PDFInfo
- Publication number
- CN117862694A CN117862694A CN202410166875.2A CN202410166875A CN117862694A CN 117862694 A CN117862694 A CN 117862694A CN 202410166875 A CN202410166875 A CN 202410166875A CN 117862694 A CN117862694 A CN 117862694A
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- CN
- China
- Prior art keywords
- cutting
- metal
- blank
- workpiece
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 100
- 239000002184 metal Substances 0.000 title claims abstract description 45
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 45
- 238000005516 engineering process Methods 0.000 title claims abstract description 9
- 238000007689 inspection Methods 0.000 claims abstract description 7
- 238000012795 verification Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- -1 high-strength steel Chemical class 0.000 claims abstract description 3
- 238000003698 laser cutting Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 230000003064 anti-oxidating effect Effects 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000012824 chemical production Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a high-strength metal cutting processing technology, which comprises the following steps: and if an oxide layer exists on the surface of the metal, particularly for metals such as high-strength steel, the oxide layer is removed firstly, the cutting position and fixation are prepared, the workpiece is preheated, the cutting parameters are adjusted, the surface protection treatment is performed, a blank is firstly cut by adopting plasma cutting equipment, the surface of the blank is polished and flattened to form a reference surface, fine cutting is performed, and finally the quality inspection and verification are performed on a cut finished product. The invention belongs to the technical field of metal processing, and relates to a cutting processing technology capable of finely and efficiently cutting high-strength metal with wider thickness range.
Description
Technical Field
The invention belongs to the technical field of metal processing, and particularly relates to a high-strength metal cutting processing technology.
Background
High strength metal working is a difficulty in machining, and is more difficult to produce due to its high hardness and high yield strength.
The metal cutting method includes laser cutting, water cutting, plasma cutting and wire cutting. The laser cutting is to utilize the focused high-power density laser beam to irradiate, so that the irradiated material is melted, vaporized, ablated or reaches the ignition point rapidly, and simultaneously, the melted substances are blown off by means of high-speed air flow coaxial with the light beam, thereby realizing the cutting of the workpiece, and the laser cutting method belongs to one of the thermal cutting methods; the water cutting belongs to cold cutting, has no thermal deformation and good cutting quality, but adopts a cold processing mode for processing, has high cost and can not realize fine processing; the plasma cutting has obvious thermal effect, low precision and difficult secondary processing of the cutting surface; the wire cutting can only cut conductive substances, and cutting cooling liquid is needed in the cutting process. Summarizing the four cutting modes, the method has the advantages and disadvantages: the laser cutting machine has wide application range, high cutting precision and low cutting thickness; the water cutting is not easy to deform, the cutting thickness is high, but the cost is high, and the speed is low; the linear cutting speed is high, the consumable is serious, and the cutting precision is high; the plasma cutting precision is low, the cost is low, and the cutting thickness is high. Therefore, there is an urgent need for a cutting process capable of precisely and efficiently cutting a high-strength metal having a wide range of thickness
Disclosure of Invention
In order to solve the problems, the invention provides a cutting processing technology capable of finely and efficiently cutting high-strength metal with wider thickness range.
In order to realize the functions, the technical scheme adopted by the invention is as follows: a high-strength metal cutting processing technology comprises the following steps:
(one) cleaning the metal surface: cleaning the metal surface by using a solvent, alcohol or an acidic cleaning agent, and if an oxide layer exists on the metal surface, particularly for metals such as high-strength steel, removing the oxide layer before cutting;
(II) preparing a cutting position and fixing: the metal workpiece is safely fixed at the cutting position by using the fixing clamp, so that the workpiece is ensured not to move or shake in the cutting process;
and (III) preheating the workpiece: preheating a workpiece to 400 ℃, reducing the hardness of metal and improving cutting performance;
(IV) adjusting cutting parameters: the plasma cutting arc current of the plasma cutting device is 50-230A;
and (V) surface protection treatment: before cutting, the metal surface is protected, so that oxidation and pollution generated by cutting are reduced, and the cutting quality is ensured
Sixth, pre-cutting the blank: firstly cutting out a blank by adopting plasma cutting equipment, and polishing the surface of the blank to be flat to form a reference surface;
(seventh) Fine cutting: drawing a cutting guide line on the other surface of the blank by taking one reference surface of grinding as a horizontal reference, and then carrying out laser cutting by using laser cutting equipment;
(eight) quality inspection and verification: after the cutting process is completed, quality inspection and verification are performed.
Preferably, the oxide layer is removed in the step (one) by acid washing or mechanical polishing.
Preferably, the metal surface protection treatment in the step (five) adopts spraying protection liquid, coating antioxidation coating or adopting inert atmosphere and the like.
Preferably, the distance between the laser head of the laser cutting device and the blank in the step (six) is 1mm-3mm, the power of the laser is 1200W-2500W, the pulse frequency is 1kHz-20kHz, and the moving speed of the workpiece is 600mm/min-1200mm/min.
Compared with the prior art, the leather chemical production and purification detection process has the following advantages: the thicker sheet is cut into the blank in advance by utilizing plasma cutting, then the laser cutting equipment is used for fine cutting, the cutting precision is guaranteed, the consumable is reduced under the condition of very good control cost, fine and efficient cutting can be carried out on the sheet metal with larger thickness, and the sheet metal cutting device is worthy of popularization.
Drawings
Fig. 1 is a process flow diagram of a high strength metal cutting process according to the present invention.
Detailed Description
The following description of the present invention will be made clearly and fully, and it is apparent that the embodiments described are some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention discloses a high-strength metal cutting processing technology, which comprises the following steps of:
(one) cleaning the metal surface: cleaning the metal surface by using a solvent, alcohol or an acidic cleaning agent, and removing oxides on the surface of the metal surface by adopting a method such as acid washing or mechanical polishing before cutting if an oxide layer exists on the metal surface, particularly for metals such as high-strength steel;
(II) preparing a cutting position and fixing: the metal workpiece is safely fixed at the cutting position by using the fixing clamp, so that the workpiece is ensured not to move or shake in the cutting process;
and (III) preheating the workpiece: preheating a workpiece to 400 ℃, reducing the hardness of metal and improving cutting performance;
(IV) adjusting cutting parameters: the plasma cutting arc current of the plasma cutting device is 50-230A;
and (V) surface protection treatment: before cutting, the metal surface is protected by spraying protective liquid, coating antioxidation coating or inert atmosphere, etc., so that oxidation and pollution generated by cutting are reduced, and cutting quality is ensured
Sixth, pre-cutting the blank: firstly cutting out a blank by adopting plasma cutting equipment, and polishing the surface of the blank to be flat to form a reference surface;
(seventh) Fine cutting: drawing a cutting guide line on the other surfaces of the blank by taking one reference surface of grinding as a horizontal reference, then, carrying out laser cutting by using a laser cutting device, wherein the distance between a laser head of the laser cutting device and the blank is 1mm-3mm, the power of a laser is 1200W-2500W, the pulse frequency is 1kHz-20kHz, the moving speed of a workpiece is 600mm/min-1200 mm/min;
(eight) quality inspection and verification: after the cutting process is completed, quality inspection and verification are performed.
The invention and its embodiments have been described above with no limitation, but the examples shown are only one of the embodiments of the invention, and the actual structure is not limited thereto. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (4)
1. The high-strength metal cutting processing technology is characterized by comprising the following steps of:
(one) cleaning the metal surface: cleaning the metal surface by using a solvent, alcohol or an acidic cleaning agent, and if an oxide layer exists on the metal surface, particularly for metals such as high-strength steel, removing the oxide layer before cutting;
(II) preparing a cutting position and fixing: the metal workpiece is safely fixed at the cutting position by using the fixing clamp, so that the workpiece is ensured not to move or shake in the cutting process;
and (III) preheating the workpiece: preheating a workpiece to 400 ℃, reducing the hardness of metal and improving cutting performance;
(IV) adjusting cutting parameters: the plasma cutting arc current of the plasma cutting device is 50-230A;
and (V) surface protection treatment: before cutting, the metal surface is protected, so that oxidation and pollution generated by cutting are reduced, and the cutting quality is ensured
Sixth, pre-cutting the blank: firstly cutting out a blank by adopting plasma cutting equipment, and polishing the surface of the blank to be flat to form a reference surface;
(seventh) Fine cutting: drawing a cutting guide line on the other surface of the blank by taking one reference surface of grinding as a horizontal reference, and then carrying out laser cutting by using laser cutting equipment;
(eight) quality inspection and verification: after the cutting process is completed, quality inspection and verification are performed.
2. The high-strength metal cutting process according to claim 1, wherein the oxide layer is removed in the step (a) by pickling or mechanical polishing.
3. The high-strength metal cutting process according to claim 1, wherein the metal surface protection treatment in the step (five) is performed by spraying a protective liquid, applying an antioxidation coating, or using an inert atmosphere.
4. The high-strength metal cutting process according to claim 1, wherein the distance between the laser head of the laser cutting device and the blank in the step (six) is 1mm-3mm, the power of the laser is 1200W-2500W, the pulse frequency is 1kHz-20kHz, and the moving speed of the workpiece is 600mm/min-1200mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410166875.2A CN117862694A (en) | 2024-02-06 | 2024-02-06 | High-strength metal cutting processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410166875.2A CN117862694A (en) | 2024-02-06 | 2024-02-06 | High-strength metal cutting processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117862694A true CN117862694A (en) | 2024-04-12 |
Family
ID=90577566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410166875.2A Pending CN117862694A (en) | 2024-02-06 | 2024-02-06 | High-strength metal cutting processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117862694A (en) |
-
2024
- 2024-02-06 CN CN202410166875.2A patent/CN117862694A/en active Pending
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