Chamfering (removing sharp edges is safer)
Used to remove sharp edges and improve assembly feel and safety; it also helps reduce edge stress concentration and risk of edge collapse.
PA (injection molding)
PA (nylon) is one of the most commonly used engineering plastics in injection molding.
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 | Injection Molding |
|---|---|
| Material | PA (nylon) |
| Accuracy | ±0.2 mm |
| Minimum wall thickness | 1.0mm |
| Service temperature | 300-600℃ |
| Tensile strength | 450-1100MPa |
| Density | 7.7-8.5 g/cm³ |
| Applications | Suitable for scenarios such as prototypes and functional validation, you can choose a more suitable material solution based on appearance, strength, temperature resistance and cost targets. |
| Finishing | Chamfering, grinding, bonding, screen printing, laser engraving |
| Typical lead time | It is related to the structural complexity, mold plan, quantity and finishing; clear lead time and expedited options will be given after uploading the file. |
Finishing
Polishing (to improve appearance and fit)
It can be used to remove gate marks, slight flash and surface defects; it is more helpful for appearance surfaces and assembly contact surfaces.
Bonding (part assembly/structural reinforcement)
Suitable for large-scale separation, structural combination or local reinforcement; it is recommended to indicate the bonding location and strength/appearance requirements in the remarks.
Screen printing (logo and scale)
Suitable for logos, scales and other graphic information; it is recommended to provide vector files and mark the location, size and direction.
Laser engraving (durable marking)
Used for permanent identification, QR codes, serial numbers, etc.; when positioning and readability requirements are high, it is recommended to confirm the style and contrast first.
Why Choose PA (Injection Molding)
Common solutions for engineering plastics
It is easy to strike a balance between cost and performance, and is suitable for the transition from prototype to small batch verification.
Lightweight and friendly
It is suitable for structural parts and functional validation parts that require weight control. Proper design can take into account both strength and rigidity.
Can be used with DFM to improve yield
By optimizing wall thickness, rib positions, gates and demoulding, the risks of shrinkage, warping and welding lines can be significantly reduced.
Finishing is scalable
Supports chamfering, grinding, bonding, screen printing and laser engraving, making it easy to make logos and appearance finishing, and improve deliverability.
Recommended Applications
- Prototype and functional validation: Need to verify the structure, assembly and process feasibility of the injection molding route
- Lightweight appeal: Looking for a balance between weight and strength
- Accepts regular injection molding marks: Gate marks, ejector pin marks, and welding lines are within controllable range
- Need identification: Screen printing/laser engraving for logo, scale, QR code and serial number
Consider Another Material or Process
- Extreme appearance requirements: When there is zero tolerance for weld lines/ejector marks/gate marks, appearance standards and mold plans need to be defined in advance
- Ultra-tight tolerances/ultra-thin walls: It is recommended to do DFM and mold flow/process evaluation first, or switch to more suitable materials/processes
- High temperature/high intensity extreme working conditions: It is recommended to evaluate higher performance material systems based on working conditions
- Particularly sensitive to dimensional stability: It is necessary to focus on controlling the wall thickness and shrinkage direction, and clarify the key dimensions and detection standards.
Design and DFM Guidelines
- Uniform wall thickness is preferred: Try to avoid sudden changes in thickness; if necessary, use "hollow + ribs" to replace solid thick meat to reduce shrinkage and deformation.
- Draft angle: It is recommended to reserve a draft slope for side walls with a draft direction to reduce the risk of strain and ejection whitening.
- Rib positions and fillets: It is recommended that the rib thickness match the wall thickness and make transition fillets to reduce stress concentration and surface shrinkage.
- Gate and appearance surface: Please define the appearance surface/hidden surface in the remarks; the gate position and welding line will affect the appearance and strength, and it is recommended to review it in advance.
- Hole location and assembly: It is recommended to provide 2D tolerances and datums for key holes/mating surfaces; reserve finishing or assembly compensation strategies if necessary.