Design

Engineering Design R&D Center

We have a professional design team of engineers, using CAD, Pro-E, UG, SolidWorks, etc. Integrate DFM into the design over the years to ensure seamless connection from concept to mass production.

Option 1: If you have 3D STEP X_T drawings or 2D drawings, please send us a quote directly, then we will do the DFM and mold design for you.

Option 2: If you have a sample but no drawing, please provide us with the sample directly. We can design 3D drawings and give you a quote.

Passenger Side Arm

Product Information

Part Name: Passenger side Arm
Mold insert material: FS448
Suggested shrinkage: 1.006
Outer size: 130.5X93.7X114.3
Average thickness: 5.86
Material: ADC12
Finish: Black powder coat

Main parting surface

Fixed mold

Blue Parting Line

Dynamic mold

Material Incoming Position

Red indicates the gate location, blue indicates the slag bag. Please confirm.

Passenger Side Arm

Main parting surface

Material Incoming Position

Product Draft

With the concept of "Professional & Diligent", DONREX is committed to be the leader of OEM&ODM metal parts and fabrication services, with Customer satisfaction, professional skills, and employee happiness, as its core values.

#01

Product Draft

The red-marked surfaces have no draft angle.
We propose to remove material for a 1° unilateral draft. Please confirm.

#02

Product Draft

The red cylindrical surfaces have no draft.
We'll remove material for 1° unilateral draft and add a 0.3mm radius (R0.3).
Please confirm.

#03

Product Draft

The red cylindrical surfaces have no draft.
We'll remove material for 1° unilateral draft and add a 0.3mm radius (R0.3).
Please confirm.

#04

Product Draft

The red-marked circular surfaces have no draft angle.
We propose to control the blue parting line and apply a 1° unilateral draft to both the upper and lower sides via material removal.
Please confirm.

Tolerance Confirmation

Development Time

DFM confirmation and 3d file received: 3days
Tooling kick off:35 days
Blank part and grind: 4days
Surface treatment: 4days
Correct time:10 days.
Final inspection and assembly test:3 days.

Once DFM and final drawings confirmed, we will provide detailed development Schedule. Tolerance: +/-0.2 (unless otherwise stated)

Manufacture Process

Design & Engineering

Our engineering team reviews customer requirements and creates detailed 3D CAD models and technical drawings, ensuring every dimension and tolerance meets specification before production begins.

CNC Mold Machining

High-precision CNC machining centers mill and drill the mold cavities with micron-level accuracy. Coolant systems protect tool life while achieving superior surface finishes on hardened steel molds.

Mold Assembly

Skilled technicians carefully assemble mold components, aligning core and cavity halves with precision guide pins. Each mold undergoes trial fitting and adjustment before being approved for production.

Die Casting

Molten aluminum alloy (ADC12) is injected at high pressure into the mold cavity. The die casting process ensures consistent part geometry, excellent dimensional repeatability, and superior mechanical properties.

Grinding & Deburring

Raw castings are machined on CNC grinding centers to achieve precise surface flatness and dimensional accuracy. Deburring removes any parting line flash, ensuring clean, burr-free part surfaces.

Heat Treatment

Parts are loaded into computer-controlled furnaces for heat treatment processes including annealing and aging. Precise temperature cycles optimize the mechanical properties of aluminum alloy components.

Metal Casting

Experienced foundry workers pour precisely measured molten metal into casting molds. Strict process control over pouring temperature and speed ensures consistent internal structure and minimal porosity.

CNC Turning & Milling

Multi-axis CNC turning centers perform secondary machining operations to achieve critical tolerances on features such as bores, threads, and mating surfaces that require accuracy beyond casting capability.

Welding & Fabrication

Certified welders join metal components using MIG, TIG, or spot welding processes as required. Weld quality is monitored continuously to ensure full penetration and defect-free joints on every assembly.

Quality Inspection

Every part batch is inspected using CMM coordinate measuring machines, digital calipers, and optical comparators. Dimensional reports are generated and retained as quality records for full traceability.

Surface Treatment

Parts receive customer-specified surface finishing including powder coating, anodizing, shot blasting, or chrome plating. Automated spray systems ensure uniform coating thickness and consistent color.

Packaging & Shipping

Finished parts are individually wrapped in protective foam, packed in export-grade cartons, and labeled for shipment. Each package includes an inspection certificate and full shipping documentation.