Hansheng Automation (Dongguan) Co., Ltd. is one of the most experienced manufacturers and suppliers of precision metal fabrication in China. If you're going to wholesale bulk cost-effective precision metal fabrication made in China, welcome to get pricelist and quotation from our factory. Also, customized service and OEM&ODM service are available.
Hansheng Automation can provide various high precision metal parts. We have offered services for many customers and received good feedbacks. Precision metal fabrication is a process that performs fabrication for metal materials through high precision methods and make parts achieve very high requirements of dimensional accuracy, geometric tolerances, and surface roughness requirements. It is usually used for manufacturing high-end equipment, precision instruments, electronic components and other products with extremely high precision requirements.
Feature
High equipment requirements
In order to guarantee precision and quality of fabrication, high precision machine tools and tools need to be adopted, such as CNC machine, laser cutting machine, etc. These devices can achieve positioning and processing with high precision. Meanwhile stability and accuracy could be ensured during processing.
High material requirements
In order to meet the requirements for high precision and high strength, high-quality materials need to be adopted, such as stainless steel, alloy steel, copper, etc. These materials have excellent mechanical properties and stability, which ensure metal parts have high strength and durability.
Advanced process and technology
Precision metal fabrication needs to adopt advanced processes and technologies, such as precision casting, precision forging, precision stamping, laser cutting, and numerical control machining, etc. It is able to ensure that metal parts have high precision and high quality. These processes and technologies can also be selected and applied according to different demands and material properties.
Strict quality control and inspection
In order to ensure metal parts can meet the requirements, strict quality control and testing are required. This includes inspection of raw materials, quality monitoring during processing, inspection and testing of final products, etc. At the same time, in order to ensure accuracy and reliability of the test results, advanced detection equipment and tools should also be adopted, such as three-coordinate measuring machines, surface roughness detectors, etc.
Process
Blank preparation
Suitable blank materials and shapes are selected that meet specifications of final product.
Fixture design and fabrication
Specialized fixtures are designed and manufactured to position and hold the blanks firmly and accurately.
Machine tool configuration
Machine tools with high precision, rigidity and positioning accuracy are selected.
Tool selection
Sharp and durable tools are selected based on the requirements of material and process.
Process parameter setting
Process parameters such as cutting speed, feed rate, cutting depth and coolant type are determined.
Tool path planning
Computer-aided tool path programs (CAM) that meet design requirements are generated to guide tool movement.
Countersinking
The machine tool controls the movement of cutting tool according to the program of tool path. Material is removed gradually and required shape is formed.
Quality control
Quality inspections are carried out at every key point of process. Then products can be ensured to meet tolerance requirements.
Post-treatment
Post-treatment is carried out such as removing cutting burrs, conducting heat treatment or other necessary subsequent treatments.
Application
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Aerospace |
Medical equipment |
Electronics |
automobile making |
Precision instruments and meters |
FAQ
Q: What are the differences between precision metal fabrication and traditional metal fabrication?
A: Precision Requirements: Precision metal fabrication has higher requirements for dimensional accuracy, form and location tolerance and surface roughness. It usually reaches micrometer level or even sub-micrometer level, and traditional metal fabrication has relatively lower accuracy.
Processing Technic: Precision metal fabrication adopt more advanced processes such as CNC machining, 3D printing, MIM (Metal Injection Molding), etc. Traditional metal fabrication mainly adopt processes such as common turning, milling, forging, etc.
Material Selection: Precision metal fabrication usually select materials with high hardness and high precision, such as titanium alloys, cemented carbides, etc. Traditional metal fabrication has a wider range of fabrication, including common carbon steel, cast iron, etc.
Cost and Efficiency: Precision metal fabrication has a higher cost for equipment and processes. It can improve production efficiency and product quality. Traditional metal fabrication has a lower cost for fabrication, but its accuracy and efficiency are relatively limited.
Q: What are common sources of error in precision metal fabrication?
A: Machine tool error: spindle error, guide rail guidance error, transmission chain errors, etc.
Tool error: tool wear, installation error, manufacturing precision of the cutting tool itself, etc.
Error of fixture: Positioning accuracy of the fixture, part position deviation caused by uneven clamping force.
Material error: dimensional tolerance, shape error, internal stress, etc.
Thermal deformation during processing: Cutting heat causes parts and machine tool components to expand and deform, which influence machining accuracy.
Q: What are the requirements for materials in precision metal fabrication?
A: High hardness and strength: Such as stainless steel, titanium alloy, hard alloy, etc. It can withstand cutting force and deformation during processing and ensure performance of the parts.
Good cutting performance: The material should be easy to machine, which reduces tool wear and machining deformation. For example, aluminium and copper have good machinability.
Dimensional stability: The material is not prone to deformation due to factors such as temperature and humidity during processing, which ensures part accuracy.
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