CN111974852A - Chamfering process in ship T-shaped material production process - Google Patents
Chamfering process in ship T-shaped material production process Download PDFInfo
- Publication number
- CN111974852A CN111974852A CN202010659445.6A CN202010659445A CN111974852A CN 111974852 A CN111974852 A CN 111974852A CN 202010659445 A CN202010659445 A CN 202010659445A CN 111974852 A CN111974852 A CN 111974852A
- Authority
- CN
- China
- Prior art keywords
- chamfering
- shaped
- rolling
- chamfered
- panel
- 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
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 title claims description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000004093 laser heating Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/005—Edge deburring or smoothing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/50—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by forming methods, e.g. manufacturing of curved blocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Metal Rolling (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention belongs to the field of ship manufacturing, and particularly discloses a chamfering process in a ship T-shaped section production process. According to the invention, the chamfered scale lines are marked firstly, and the chamfered part of the panel is locally heated in a laser heating mode, so that the deformation performance of the chamfered part is ensured, and the sufficient deformation is facilitated during subsequent rolling; during rolling, the radian of the chamfer is limited by using the guide circular shaft, so that the forming precision of the chamfer fillet is ensured; after rolling, the rolled part is cooled and shaped by using a cold air conveying mode, so that the chamfered state is convenient to maintain, and resilience is difficult; and the mode of alternately carrying out heating and rolling is adopted, so that the rolling and cooling links are ensured to be immediately carried out after heating, the heat loss and deformation time is reduced, and the chamfering quality is ensured.
Description
Technical Field
The invention relates to the field of ship manufacturing, in particular to a chamfering process in a ship T-shaped section production process.
Background
The shipbuilding of mankind has a long history, and due to the development of shipping and military requirements, ships tend to be large-sized and specialized, and the shipbuilding technology is rapidly developed, so that the shipbuilding has become one of the most important heavy industrial departments in the world. The T-shaped section in the field of ship manufacturing is generally assembled and welded by two steel plates, i.e. a panel and a web, in a manner of mutually perpendicular to form a T-shape.
The chamfering is an outer right angle or an inner right angle of the workpiece and is slightly chamfered, so that stress concentration is avoided, and fingers cannot be scratched when the workpiece is installed. At present, when chamfering is carried out on a panel of a T-shaped section, chamfering is usually finished in a direct rolling mode, the mode results in poor plate deformation effect, slight rebound is easy to occur after chamfering, and the machining precision is influenced.
Disclosure of Invention
The invention aims to provide a chamfering process in a ship T-shaped material production process, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a chamfering process in a ship T-shaped material production process comprises the following specific steps:
s1: taking a T-shaped section panel, and marking chamfered scale marks on each edge of the T-shaped section panel according to the set chamfered degree;
s2: fixing the T-shaped section panel on a processing table by using a positioning device, and heating the part of the T-shaped section panel outside the chamfered scale mark by using a laser heater;
s3: placing the heated T-shaped section panel on a chamfering machine, and rolling and chamfering the heating part;
s4: after rolling, continuously keeping the rolling state unchanged, and cooling and shaping the chamfered part;
s5: and taking a T-shaped section web plate, and vertically welding the T-shaped section web plate with the assembling point in the middle of the shaped T-shaped section panel to form the T-shaped section.
Preferably, in step S1, the chamfered graduation marks are marked on the front and back surfaces of the T-shaped panel.
Preferably, in step S2, the positioning device clamps the middle portion of the T-shaped panel to expose each free edge of the T-shaped panel.
Preferably, in step S2, the laser heater heats the strip by strip, that is, the heating and the rolling are alternately performed, and the rolling of the strip is performed immediately after each strip is heated.
Preferably, in step S3, when chamfering is performed by rolling, a guide circular shaft is abutted to a position of a chamfering scale line on the bottom surface of the T-shaped panel, the circular shaft is attached to the chamfering scale line in parallel, and the radian of the guide circular shaft is the same as the radian of a fillet during chamfering.
Preferably, in step S4, after the rolling is completed, the rolling state is kept for 20 to 30 seconds, and the rolled part is cooled and shaped by means of cold air delivery.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the chamfered scale lines are marked firstly, and the chamfered part of the panel is locally heated in a laser heating mode, so that the deformation performance of the chamfered part is ensured, and the sufficient deformation is facilitated during subsequent rolling; during rolling, the radian of the chamfer is limited by using the guide circular shaft, so that the forming precision of the chamfer fillet is ensured; after rolling, the rolled part is cooled and shaped by using a cold air conveying mode, so that the chamfered state is convenient to maintain, and resilience is difficult; and the mode of alternately carrying out heating and rolling is adopted, so that the rolling and cooling links are ensured to be immediately carried out after heating, the heat loss and deformation time is reduced, and the chamfering quality is ensured.
Detailed Description
The invention provides a technical scheme that: a chamfering process in a ship T-shaped material production process comprises the following specific steps:
s1: taking a T-shaped section panel, and marking chamfered scale marks on each edge of the T-shaped section panel according to the set chamfered degree;
s2: fixing the T-shaped section panel on a processing table by using a positioning device, and heating the part of the T-shaped section panel outside the chamfered scale mark by using a laser heater;
s3: placing the heated T-shaped section panel on a chamfering machine, and rolling and chamfering the heating part;
s4: after rolling, continuously keeping the rolling state unchanged, and cooling and shaping the chamfered part;
s5: and taking a T-shaped section web plate, and vertically welding the T-shaped section web plate with the assembling point in the middle of the shaped T-shaped section panel to form the T-shaped section.
Further, in step S1, chamfered graduation marks are marked on the front and back surfaces of the T-shaped panel.
Further, in step S2, the positioning device clamps the middle portion of the T-shaped panel to expose each free edge of the T-shaped panel.
Further, in step S2, the laser heater heats the strip by strip, that is, the heating and the rolling are alternately performed, and the rolling of the strip is performed immediately every time one strip is heated.
Further, in step S3, during chamfering by rolling, the bottom surface chamfering scale line of the T-shaped panel abuts against a guiding circular shaft, the circular shaft is attached to the chamfering scale line in parallel, and the radian of the circular shaft is the same as that of a fillet during chamfering.
Further, in step S4, after the rolling is completed, the rolling state is continuously maintained for 20 to 30 seconds, and the rolled part is cooled and shaped by a cold air conveying method.
According to the invention, the chamfered scale lines are marked firstly, and the chamfered part of the panel is locally heated in a laser heating mode, so that the deformation performance of the chamfered part is ensured, and the sufficient deformation is facilitated during subsequent rolling; during rolling, the radian of the chamfer is limited by using the guide circular shaft, so that the forming precision of the chamfer fillet is ensured; after rolling, the rolled part is cooled and shaped by using a cold air conveying mode, so that the chamfered state is convenient to maintain, and resilience is difficult; and the mode of alternately carrying out heating and rolling is adopted, so that the rolling and cooling links are ensured to be immediately carried out after heating, the heat loss and deformation time is reduced, and the chamfering quality is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A chamfering process in a ship T-shaped material production process is characterized by comprising the following specific steps:
s1: taking a T-shaped section panel, and marking chamfered scale marks on each edge of the T-shaped section panel according to the set chamfered degree;
s2: fixing the T-shaped section panel on a processing table by using a positioning device, and heating the part of the T-shaped section panel outside the chamfered scale mark by using a laser heater;
s3: placing the heated T-shaped section panel on a chamfering machine, and rolling and chamfering the heating part;
s4: after rolling, continuously keeping the rolling state unchanged, and cooling and shaping the chamfered part;
s5: and taking a T-shaped section web plate, and vertically welding the T-shaped section web plate with the assembling point in the middle of the shaped T-shaped section panel to form the T-shaped section.
2. The chamfering process in the production process of ship T-shaped materials according to claim 1, wherein the chamfering process comprises the following steps: in step S1, chamfered graduation marks are marked on the front and back surfaces of the T-shaped panel.
3. The chamfering process in the production process of ship T-shaped materials according to claim 1, wherein the chamfering process comprises the following steps: in step S2, the positioning device clamps the middle portion of the T-shaped panel to expose each free edge of the T-shaped panel.
4. The chamfering process in the production process of ship T-shaped materials according to claim 1, wherein the chamfering process comprises the following steps: in step S2, the laser heater heats the strip by strip, that is, the heating and the rolling are alternately performed, and the rolling is performed on one strip at a time.
5. The chamfering process in the production process of ship T-shaped materials according to claim 1, wherein the chamfering process comprises the following steps: in step S3, when chamfering is performed by rolling, a guide circular shaft is abutted to a position of a chamfering scale line on the bottom surface of the T-shaped panel, the circular shaft is attached to the chamfering scale line in parallel, and the radian of the circular shaft is the same as that of a fillet during chamfering.
6. The chamfering process in the production process of ship T-shaped materials according to claim 1, wherein the chamfering process comprises the following steps: and step S4, after the rolling is finished, continuing to keep the rolling state for 20-30S, and cooling and shaping the rolled part by using a cold air conveying mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659445.6A CN111974852A (en) | 2020-07-09 | 2020-07-09 | Chamfering process in ship T-shaped material production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010659445.6A CN111974852A (en) | 2020-07-09 | 2020-07-09 | Chamfering process in ship T-shaped material production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111974852A true CN111974852A (en) | 2020-11-24 |
Family
ID=73438588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010659445.6A Pending CN111974852A (en) | 2020-07-09 | 2020-07-09 | Chamfering process in ship T-shaped material production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111974852A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570510A (en) * | 2020-12-23 | 2021-03-30 | 同济大学 | Laser-assisted roll forming method, device and system for reducing part springback |
| CN119304977A (en) * | 2024-11-20 | 2025-01-14 | 江苏豪凯机械有限公司 | A method for forming a plate lock |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570510A (en) * | 2020-12-23 | 2021-03-30 | 同济大学 | Laser-assisted roll forming method, device and system for reducing part springback |
| CN119304977A (en) * | 2024-11-20 | 2025-01-14 | 江苏豪凯机械有限公司 | A method for forming a plate lock |
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