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Steel Plate Flatness Tolerance: The Choice When You Have Flatness Tolerance for Steel Plates

With the continuous improvement of manufacturing quality requirements, steel plates, as an important basic material and mechanical component, their flatness directly affects the precision of subsequent processing and final products. This article will specifically analyze why flattening steel plates is extremely important for obtaining high-precision manufacturing, and what kind of CNC machining process should be used for efficient flattening.


The necessity of flattening steel plates

Compared with directly using raw steel plates, flattened steel plates can significantly improve machining quality and performance. Specific advantages include:


1. Improve machining and use accuracy, accuracy up to 0.01mm

2. Improve appearance quality, can reduce surface bumps greater than 0.5mm

3. Extend service life, life can be increased by more than 15%

4. Prevent secondary deformation, deformation can be reduced by 80%

5. Improve efficiency of subsequent processing, can save 60% of machining time

6. Reduce machining costs, costs can be reduced by 30%

7. Improve product performance, increase mechanical strength by up to 20%


The advantages of CNC flattening

Compared with traditional manual flattening methods, CNC milling operation and other steel plate flattening has the following advantages:

1. Reduce human factors, quality pass rate up to 99%

2. High-efficiency batch processing, daily output per machine up to 500 pieces

3. Higher machining accuracy, up to ±0.02mm

4. Easy programming adjustment, program optimization time can save 70%

5. Reduce labor costs, can save 80% of manpower

6. Wider applicability, can process steel plates with thickness of 5-300mm

7. Better repeatability, error between plates can be controlled within 0.01mm


steel plate flattening machine


Main applications of flattening steel plates

1. Mechanical manufacturing industry

In the mechanical manufacturing industry, steel plates are important basic materials and components. In order to obtain high-precision mechanical products, it is necessary to use precisely flattened steel plates for processing and manufacturing.

2. Metal building materials processing

In the production of various steel structures, the flatness of the steel plate surface directly affects the quality of subsequent welding and assembly. Flattening is a necessary step to ensure the quality of steel structures.

3. Steel structure construction

On-site steel structure installation requires prefabricated steel components to be flattened to ensure that the weld seam gap meets the requirements, the installation dimensions are accurate, and the installation process is smooth.

4. Shipbuilding industry

Steel plates for ship hulls require high flatness and surface quality. Fine flattening of steel plates before ship assembly and welding is particularly critical.

5. Automotive manufacturing

Automobile bodies and internal structures use a lot of steel plates, which need to be accurately flattened to ensure appearance quality and structural strength. Steel plate flattening is an important automotive CNC machining method.

6. Home appliance shells

Many large household appliances shells such as refrigerators and washing machines use steel plates. Flattening can make the shells flatter and more beautiful.

7. Precision instrument housing

The enclosures for medical and measuring devices require high-flatness steel plates. Flattening is the basis for ensuring their precision and stability.


Specific process of CNC flattening

The specific process of CNC steel plate flattening includes:

1. Design digital machining program

According to the original surface shape and deformation of the steel plate, design the machining program for the CNC machine tool.

2. Clamping and fixing the steel plate

Use a robot arm or manually clamp the steel plate onto the worktable of the CNC machine tool for fixing.

3. Surface cleaning

Clean the surface of the steel plate to remove dirt, grease, etc.

4. Automated flattening machining

Start the CNC milling machine, load the program, and automatically perform planing machining to gradually flatten the surface of the steel plate.

5. Process monitoring

Use measuring instruments to monitor the flatness of the steel plate, and manually intervene or modify the program if necessary.

6. Surface polishing

Use a polishing device or polishing tool to polish the steel plate to improve the surface texture.

7. Quality inspection

After passing the inspection, perform subsequent identification, packaging and other operations to complete the flattening process.



Common issues with CNC flattening

Q: Why choose a CNC milling machine instead of other machine tools?

A: CNC milling machines can perform multi-axis machining, and precisely control each machining parameter through programming to achieve micrometer-level high precision flattening.

Q: How do CNC flattening and manual flattening compare in price?

A: Although automated CNC flattening requires initial equipment investment, it can greatly reduce labor costs and improve efficiency. Overall, it has significant price advantages.

Q: Is polishing still required after flattening?

A: Slight polishing can further improve the surface texture, but excessive polishing will actually reduce surface accuracy. The extent needs to be properly controlled.

By using CNC milling machines and other automated flattening methods, high precision can be ensured while greatly improving the efficiency of steel plate machining. It is an effective means to achieve high quality and efficient steel plate machining, and is worth widespread application.

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