Aluminum Profile CNC Precision Deep Processing

Precision deep processing of aluminum profiles refers to secondary precision machining of finished aluminum profiles on the basis of extrusion, using CNC equipment to perform multi-process, high-precision machining that transforms raw extruded profiles into precision parts ready for direct assembly on end-user equipment. Deep processing is the key bridge connecting "raw extruded profiles" and "finished products." An extruded aluminum profile is only a semi-finished product; only after going through processes such as cutting, milling, drilling, tapping, turn-mill compound machining, bending, and welding, together with surface treatments such as anodizing, sandblasting, brushing, and powder coating, can the aluminum profile become a precision part ready for direct assembly on end-user equipment.

Shanghai Chuangsi Aluminum Co., Ltd. is located in Qingpu, Shanghai. We own a physical factory and possess full-process collaborative capability from profile extrusion (partner production lines) to CNC precision machining and surface finishing. We are equipped with a full set of machining equipment including five-axis/three-axis CNC machining centers, gantry milling machines, turn-mill compound machining centers, CNC end-face milling machines, automatic precision cutting saws, automatic tapping machines, press brakes, and welding equipment. Deep processing accuracy is ±0.01-0.05mm, maximum machining length 6.5m, maximum machining width 550mm, and maximum machining height 500mm. We can machine all grades of aluminum alloy such as 6061-T6, 6063-T5, 6005-T6, 6082-T6, and 7075-T5. We provide one-stop delivery across the full process from profile extrusion, CNC precision machining to surface finishing (extrusion is carried out on partner production lines), so customers only need to deal with one supplier.

Core machining capabilities:

1. CNC milling: Five-axis/three-axis CNC machining centers and gantry milling machines perform face milling, curved-surface milling, groove milling, profile milling, and cavity milling, with positioning accuracy ±0.02mm, repeat positioning accuracy ±0.005mm, and surface roughness Ra≤1.6μm.

2. CNC turn-mill compound machining: Multiple processes such as outer-diameter turning, inner-hole boring, end-face milling, keyway milling, drilling, and tapping are completed in a single setup, eliminating repeated setup errors, with turning accuracy ±0.01mm.

3. Precision drilling and tapping: All types of hole machining including through holes, countersunk holes, blind holes, and mounting holes, as well as end-face tapping, with hole position accuracy ±0.02mm and tapping accuracy grade 6H.

4. Precision cutting and end-face milling: Automatic precision cutting saw cutting accuracy ±0.1mm; CNC end-face milling machine end-face perpendicularity ≤0.05mm, length accuracy ±0.05mm.

5. Bending and welding: Maximum bending length 6m, maximum bending thickness 12mm, angle error ≤±0.5°. Supported by MIG/TIG welding processes to meet the assembly needs of complex structural parts.

6. Supported surface finishing: Surface treatments including anodizing, hard anodizing, sandblasting, brushing, powder coating, and conductive oxidation, completed in one stop from CNC machining to surface finishing.

Machining capability parameters:

Item	Parameter / Description
Equipment type	Five-axis/three-axis CNC machining centers, gantry milling machines, turn-mill compound machining centers, CNC end-face milling machines, automatic precision cutting saws, press brakes, welding equipment
Machining accuracy	±0.01mm to ±0.05mm
Repeat positioning accuracy	±0.005mm
Surface roughness	Ra≤1.6μm (high precision Ra≤0.8μm)
Maximum machining length	6500mm
Maximum machining width	550mm
Maximum machining height	500mm
Maximum bending length	6m
Maximum bending thickness	12mm
Bending angle error	≤±0.5°
Available materials	6061-T6, 6063-T5, 6005-T6, 6082-T6, 7075-T5
Machining method	Custom to drawings, custom to samples
Deep processing operations	Milling, turn-mill compound, drilling and tapping, cutting, end-face milling, bending, welding
Surface treatment	Anodizing, hard anodizing, sandblasting, brushing, powder coating, conductive oxidation
Executive standard	GB/T 6892-2023 high-precision grade
MOQ	50kg
Sample lead time	3-7 days (depending on complexity)
Batch lead time	7-15 days after sample approval
Production location	Qingpu, Shanghai

Selection reference:

Application scenario	Recommended material	Key deep processing operations
Precision structural parts for automation equipment	6063-T5	Milling + drilling and tapping + end-face milling + anodizing
AI server heat dissipation modules	6061-T6 / 1070	Milling (flatness ≤0.02mm) + anodizing
Semiconductor equipment cavities and worktables	6061-T6	Cavity milling (±0.01mm) + hard anodizing
5G communication equipment housings	6063-T5	Cavity milling + drilling and tapping + conductive oxidation
Precision parts for medical equipment	6061-T6 / 6063-T5	High-precision milling + drilling and tapping + anodizing
New energy battery trays and heat dissipation modules	6061-T6	Large-face milling + bending + welding + powder coating
Robot body structural parts	6061-T6 / 7075-T5	Profile milling + turn-mill compound + drilling and tapping
Components for military and defense equipment	7075-T5	High-precision five-axis milling + hard anodizing

Typical application scenarios:

• Precision structural parts for automation equipment

• AI server heat dissipation modules

• Semiconductor equipment cavities and worktables

• 5G communication equipment housings

• Precision parts for medical equipment

• New energy battery trays and heat dissipation modules

• Robot body structural parts

• Components for military and defense equipment

FAQ (Frequently Asked Questions)

Q1: What is the difference between precision deep processing of aluminum profiles and ordinary CNC machining?

A: Ordinary CNC machining usually refers to single-process machining (such as only milling or only drilling). Precision deep processing is a comprehensive machining service covering multiple processes and the full flow—from profile cutting, milling, drilling and tapping, turn-mill compound machining, bending, and welding to surface finishing, all completed in-house in one stop. Customers only need to provide drawings and receive finished parts ready for direct assembly.

Q2: What processes are generally included in precision deep processing?

A: Precision deep processing covers machining operations such as cutting, milling, turn-mill compound machining, drilling, tapping, end-face milling, bending, and welding, as well as surface finishing processes such as anodizing, hard anodizing, sandblasting, brushing, powder coating, and conductive oxidation. The specific processes performed are determined according to customer drawing requirements.

Q3: What accuracy can precision deep processing achieve?

A: The comprehensive deep processing accuracy is ±0.01mm to ±0.05mm. Among these, milling positioning accuracy is ±0.02mm, turning accuracy ±0.01mm, hole position accuracy ±0.02mm, tapping accuracy grade 6H, and end-face milling perpendicularity ≤0.05mm.

Q4: What are the advantages of one-stop deep processing services?

A: Under the traditional model, customers need to separately contact extrusion plants, CNC machining shops, and surface finishing shops, dealing with multiple parties and repeated transfers, with uncontrolled quality and lead times. The one-stop deep processing service delivers the full flow from extrusion (partner production lines), CNC machining to surface finishing in one stop; customers only deal with one supplier, greatly reducing management costs and shortening delivery cycles.

Q5: What is the maximum size of aluminum profile that can be machined?

A: Maximum machining length is 6500mm, maximum machining width 550mm, and maximum machining height 500mm. Precision deep processing of extra-long profiles is one of our core strengths.

Q6: What is the minimum order quantity for precision deep processing?

A: The MOQ is 50kg. We support small-batch sampling, R&D trial production, and small-to-medium batch production. Samples can be delivered in as fast as 3 days.