High precision four axis CNC milling service - suitable for customized aluminum alloy and stainless steel box/shell parts

1、 Core service advantages
Multi dimensional precision machining, tackling complex structures of boxes/shells
By relying on a four axis linkage CNC system (X/Y/Z axis linear motion+A-axis rotational motion), the box/shell parts can be clamped in one go and processed in multiple ways, without the need for repeated positioning, greatly reducing clamping errors. The positioning accuracy can reach ± 0.003mm, and the repeated positioning accuracy can be ± 0.002mm. For complex structures such as side wall holes, inclined grooves, and annular slots of the box/shell, milling can be completed in one go, avoiding dimensional deviations caused by traditional multi process processing, ensuring that the sealing and assembly accuracy of aluminum alloy and stainless steel boxes/shells meet design standards.
Specialized material and art adaptation, balancing material characteristics and processing efficiency
Aluminum alloy box/shell: In response to the lightweight and easily thermally deformed characteristics of aluminum alloy, low-temperature cutting technology and specialized coated end mills are used to reduce thermal stress during the machining process, avoid side wall warping and edge burrs of the box/shell, and improve cutting efficiency, saving 25% of machining time compared to traditional processes;
Stainless steel box/shell: In response to the high strength and hardness of stainless steel (such as 304/316 stainless steel), it is equipped with high-speed hard alloy cutting tools and high-pressure cooling system to solve the problems of easy tool sticking and poor surface roughness in stainless steel processing. It can achieve a precision smoothness of Ra ≤ 0.8 μ m on the surface of the box/shell, meeting the requirements of corrosion resistance and wear resistance.
Flexible customization coverage, adapted to meet the needs of multiple scene boxes/shells
Support full scenario customization from "small-scale trial production (1-50 pieces)" to "large-scale mass production (1000+pieces)". Whether it is small electronic equipment aluminum alloy shells (such as sensor housings), medium-sized industrial control stainless steel chassis, or special equipment boxes/shells with irregular structures, they can be quickly disassembled and processed according to customer provided 2D engineering drawings and 3D models (STEP/IGS format) to adapt to different sizes (conventional processing range: length 1000mm x width 600mm x height 500mm) and different wall thicknesses (aluminum alloy boxes/shells ≥ 1mm, stainless steel boxes/shells ≥ 0.8mm) customization needs.
Whole process quality control to ensure stable performance of boxes/shells
Establish a three-level control system for the core functional requirements of "load-bearing, sealing, and protection" of box/shell parts, including "material testing before processing → real-time monitoring during processing → full quality inspection after processing": verify the composition of aluminum alloy/stainless steel materials (such as aluminum alloy 6061-T6 hardness and stainless steel 316 corrosion resistance) before processing; Real time compensation of tool wear through CNC system during processing; After processing, use a coordinate measuring instrument to check the hole tolerance, flatness, and perpendicularity of the box/shell to ensure that each product meets the usage standards.
2、 Core application areas
Electronics and Communication Industry
Customized aluminum alloy communication equipment chassis (such as 5G base station signal receiver housing), stainless steel industrial switch chassis, aluminum alloy material meets lightweight requirements, stainless steel material resists corrosion in harsh environments, and is suitable for precision assembly of internal components of equipment.
Industrial automation field
We produce stainless steel PLC control cabinets and aluminum alloy sensor protective cases. Four axis milling can accurately process the wiring holes and installation slots of boxes/shells, ensuring stable circuit connections and seamless component assembly of automation equipment.
Medical equipment industry
Processing stainless steel diagnostic instrument casings (such as blood analyzer casings) and aluminum alloy medical cart casings. Stainless steel meets medical grade hygiene standards (easy to clean, corrosion-resistant), while aluminum alloy is lightweight and easy to move. At the same time, the sealing structure of the casing can protect the internal precision instruments from dust and liquid interference.
new energy sector
Customized aluminum alloy charging pile body and stainless steel energy storage equipment shell. The heat dissipation of aluminum alloy is suitable for the high-temperature working environment of charging piles. The high strength of stainless steel can protect energy storage equipment from external impact. The four axis processed waterproof groove structure can enhance the IP65 protection level of the box/shell.
AAE Aerospace Ancillary Auxiliary Equipment
Production of aluminum alloy aerospace ground equipment enclosures and stainless steel aerospace testing instrument enclosures. Lightweight aluminum alloy can reduce equipment transportation costs, while high-strength stainless steel is suitable for extreme environments such as high altitude and low temperature. The precision structure of the enclosure/shell meets the stringent precision requirements of the aerospace field.
3、 Core technical support
High performance four axis CNC system
Equipped with Siemens 828D/Fanuc 0i-MF four axis CNC system, it supports automatic generation of complex surface machining paths and can achieve linkage control between A-axis (rotation axis) and X/Y/Z axis. When machining annular grooves and inclined holes of boxes/shells, the positioning accuracy error is ≤ 0.003mm. At the same time, the system has fault self diagnosis function and can provide real-time warning of machining abnormalities (such as tool breakage and material deviation).
High rigidity machine tool structure
The machine tool bed adopts cast iron integral casting process, which eliminates internal stress and reduces machining vibration through two aging treatments; The spindle is equipped with high-precision ceramic bearings, with a maximum speed of 12000rpm. It can provide stable cutting power for heavy cutting scenarios of stainless steel boxes/shells, avoiding machining accuracy deviation caused by spindle vibration.
Specialized cutting tools and cooling system
Tools: Tungsten steel coated end mills are used for processing aluminum alloy boxes/shells (with a 30% increase in wear resistance), while ultra-fine grain hard alloy tools are used for processing stainless steel boxes/shells (with strong impact resistance and reduced tool breakage);
Cooling: Equipped with a high-pressure internal cooling system (cooling pressure up to 70 bar), it can quickly remove cutting heat generated by stainless steel processing, avoid tool overheating and wear, and prevent aluminum alloy boxes/shells from deforming due to high temperature.
Digital Processing Management
Introducing MES production execution system to achieve digital traceability of the entire box/shell processing process: After customer orders are placed, the system automatically generates processing work orders and allocates machine resources; Real time collection of equipment operating parameters (such as spindle speed and cutting feed rate) during the processing; After processing is completed, a quality inspection report is automatically generated, and customers can view order progress and product testing data at any time.
4、 Frequently Asked Questions (FAQ)
Q: What is the maximum machining size for customized aluminum alloy/stainless steel boxes/shells? Can we support the processing of oversized boxes/shells?
A: The conventional processing size range is 1000mm in length, 600mm in width, and 500mm in height. If ultra large boxes/shells (such as those over 1500mm in length) are required, customized machine tool processing solutions can be provided through segmented processing and precision splicing technology. The feasibility can be confirmed by technical engineers.
Q: Is there a difference in the processing cycle between aluminum alloy boxes/shells and stainless steel boxes/shells? How long can regular orders be delivered?
A: Due to the higher processing difficulty of stainless steel (high hardness, easy to stick knives), the processing cycle of stainless steel for boxes/shells with the same structure is 15% -20% longer than that of aluminum alloy; Regular small batch orders (1-50 pieces): aluminum alloy boxes/shells can be delivered within 7-10 days, stainless steel boxes/shells can be delivered within 10-12 days; Large batch orders (1000+pieces) can be shortened through parallel production of multiple machines, and the specific delivery time can be negotiated based on the order quantity.
Q: What are the requirements for wall thickness when customizing boxes/shells? Can ultra-thin or ultra-thin wall structures be processed?
A: Conventional wall thickness range: aluminum alloy box/shell ≥ 1mm, stainless steel box/shell ≥ 0.8mm; ultra-thin walls (such as aluminum alloy ≤ 0.8mm) need to be fixed with special fixtures and controlled by low-speed cutting technology for deformation, and ultra thick walls (such as stainless steel ≥ 20mm) need to use layered milling technology. Both situations require prior communication and structural design to ensure the strength and flatness of the box/shell after processing.
Q: Can we provide surface treatment services for aluminum alloy/stainless steel boxes/shells? What are the optional processes?
A: Support integrated services of "processing+surface treatment":
Aluminum alloy box/shell: optional anodizing (natural color, black, color), sandblasting, spraying, drawing and other processes to enhance wear resistance and aesthetics;
Stainless steel box/shell: optional processes such as wire drawing, passivation, electroplating (zinc, nickel), laser marking, etc., enhance corrosion resistance and identification clarity.
Q: What technical information is required for customizing boxes/shells? If there are only preliminary design ideas, can we assist in improving the plan?
A: Suggest providing 2D engineering drawings (indicating dimensional tolerances, wall thickness, surface treatment requirements) or 3D models (in STEP/IGS/X_T format); If there are only preliminary ideas, we can provide a requirement description (such as usage scenarios, assembly component dimensions, protection level requirements), and our engineers can assist in completing structural design, material selection, feasibility analysis of processing, and output a complete technical solution before starting processing.