Sand blasting (unified matte texture)
Used to remove slight knife lines and obtain a more uniform matte surface; exterior parts are often used as a base treatment before anodizing/powder coating/painting.
5052 Aluminum Alloy
Aluminum alloy 5052 (Al-Mg series) is renowned for its "corrosion resistance, good formability, and strong stability," making it suitable for aluminum alloy parts that are more sensitive to appearance and environmental adaptability.
Quote checklist: Upload your 3D model and, when available, a 2D drawing. Identify the required process, material, quantity, critical dimensions, finish, appearance standard, and target delivery date.
Key Material and Manufacturing Parameters
Engineering note: Values below are typical reference ranges. Final manufacturability, tolerances, material condition, surface finish, cost, and lead time depend on the drawing, geometry, quantity, and selected process.
Upload CAD files and mark critical features for an engineering review before production.
| Process | CNC machining (aluminum alloy 5052) |
|---|---|
| Material properties | Corrosion-resistant, good formability, suitable for shell/plate structures and low- to medium-volume processing |
| Machining tolerance | ±0.2 mm (common reference; please mark tolerances and benchmarks for key dimensions) |
| Minimum wall thickness | ≥1.0 mm (common reference; thin-walled/long boards are recommended to undergo DFM review first to control deformation) |
| Service temperature | About 200℃ (engineering reference; actual depends on structure and usage conditions) |
| Tensile strength | 320–460 MPa (reference range; different supply conditions and standards will vary) |
| Density | 2.65 g/cm³ |
| Surface roughness | It is related to the tool path/tool feed/tool and finishing; it is recommended to sandblast/draw the cosmetic parts before anodizing/powder coating/painting to improve consistency. |
| Holes and threads | It is recommended to choose enlarging/reaming for assembly holes/fitting holes according to the purpose; please mark the specifications (M2/M3/M4...) and effective thread depth of the threaded holes. |
| Cosmetic parts suggestions | Please define the display surface and allowable knife pattern/clip printing standards; if screen printing/laser engraving is required, please provide vector files and positioning benchmarks |
| Finishing | Sand blasting, anodizing, powder coating, painting, screen printing, laser engraving, polishing, wire drawing |
| Typical lead time | Related to structural complexity, quantity, inspection requirements and finishing; clear delivery and expedited options will be given after uploading the file |
Finishing
Anodizing (corrosion resistance and texture)
Improve corrosion resistance and surface hardness, and obtain color and texture; for projects sensitive to color difference, it is recommended to provide color numbers and appearance standards.
Powder coating (strong coverage, suitable for mass production appearance)
The film thickness is higher and the coverage is good, which is suitable for the appearance consistency requirements of the shell parts and batches; the influence of the film thickness on the assembly mating surface needs to be evaluated.
Spray painting (customized color and touch)
It can achieve richer colors and surface touches (matte/high-gloss, etc.); it is recommended to provide reference pictures and appearance surface definitions.
Screen printing (logo and graphics)
Suitable for logos, scales, signs and other graphic information; it is recommended to provide vector files and explain the position, size and alignment reference.
Laser engraving (permanent marking)
Suitable for serial numbers, QR codes and durable markings; for cosmetic parts, it is recommended to clarify the laser engraving position and contrast requirements.
Polishing (local highlight/mirror finish)
Used to enhance local highlights or a more delicate touch and look; usually required to match appearance standards and inspection samples.
Brushed (directional texture)
Used for directional texture of cosmetic parts; it is recommended to mark the drawing direction and display surface in the drawings/notes.
Why choose aluminum alloy 5052 (CNC machining)
Corrosion resistance is more stable
It is more advantageous in humid, mild chemical environments or outdoor use scenarios, and is suitable for housing parts and long-term use parts.
Good formability, plate structure is more friendly
It is suitable for plate/shell structures and design routes that are more sensitive to formability, and has a more balanced overall cost and manufacturability.
Wide range of surface treatment options
Sand blasting, anodizing, powder coating, painting, wire drawing, etc. can be combined to facilitate an appearance closer to the finished product.
High delivery efficiency for low- to medium-volume production
It is suitable for the iteration rhythm from prototypes to small batches; with clear benchmarks and tolerance markings, the first-time success rate can be significantly improved.
Recommended Applications
- Corrosion resistance is preferred: Humid environment, outdoor use, parts more sensitive to rust/corrosion
- Shell and plate structure: Shell parts, covers and brackets that require better appearance and surface treatment
- Appearance consistency: Sandblasting/drawing + anode/powder coating/paint to achieve finished product quality
- Small and medium batch: Duplicate parts delivery, batch appearance standards controllable
Consider Another Material or Process
- Ultimate strength first: Higher load-bearing or rigidity requirements, may be more suitable for 7075/steel, etc.
- High temperature and long-term work: It is recommended to evaluate a more temperature-resistant material system in continuous high temperature/thermal cycle scenarios.
- Ultra-thin large flat surface with strict flatness control: Requires more stringent deformation control and process review (or structural modification/modification of clamping plan)
- Strong wear/high hardness surface: Recommended to evaluate steel, stainless steel or surface strengthening routes
Design and DFM Guidelines
- Datum and tolerance priority definition: Please provide the datum system and tolerances for key features such as assembly holes, positioning surfaces, sealing surfaces, etc. If there are no 2D markings, it is recommended to name the key dimensions in the remarks.
- Thin wall/long plate deformation control: Thin walls and large flat surfaces are more affected by clamping and residual stress; it is recommended to add ribs/flanges, avoid sudden changes in thickness, and conduct a DFM review in advance to confirm the clamping and processing routes.
- Internal angle and tool radius: Avoid "absolute right angles" in internal corners, and it is recommended to retain reasonable round corners/undercuts; this can reduce processing costs and improve consistency.
- Hole and Thread Strategy: It is recommended to reserve secondary processing allowance (enlarging/reaming) for high-precision mating holes; please mark the effective thread depth and whether chamfering and deburring are required for threaded holes.
- The connection between cosmetic parts and finishing: Please be clear about the direction and display surface required for drawing/sandblasting; powder coating/painting will affect the mating size, and it is recommended to mask or leave a process margin on the mating surface.