Machined Aluminum Injection Tooling
Machined Aluminum Injection Tooling
Attributes
Creative Strategy
Size & Complexity
- Maximum 20” x 30”. Molds can be constructed as single, family, or multi-cavity.
- Considerations: hardware, ejector pins, parting line, removable cores, runner gate and sprue
Materials
- ABS, Acetal, Acrylic, Nylon, PBT, PET, PVC, Polycarbonate, Polycarbonate/ABS, Polyethylene, Polypropylene, Thermoplastic Elastomer
Draft
Amount of taper for molded or cast parts perpendicular to the parting line. An angle is incorporated into a wall of a mold so that the opening of the cavity is wider than its base. Draft angles allow for easier ejection of the part from the mold.- Smooth Texture: 1° draft preferred minimum
- Light Texture: 3° draft preferred minimum
- Heavy Texture: 5° draft or more preferred minimum
Surface Finish
As aluminum passes through the cutting area of a milling machine, the bits excavate fragments of material at uniform intervals creating ridges, known as a milled surface displaying tool marks.- Gloss finish, polished surfaces
- Matte finish, fine glass bead-blast Light texture, coarse glass bead-blast
- Custom surface finish available at additional cost
Tolerances
Allowable variation for any given size in order to achieve proper function when considering the design intent. As with all molded products, part material’s shrink value should be considered when building your pattern and mold.- ±.005”