Fabrication

CNC (Computer Numerical Control) fabrication typically involves a series of steps to design, program, and manufacture precision parts. While the specifics can vary depending on your company and the products, here’s a general outline of the process:

1. Requirement Analysis

  • Review customer specifications, blueprints, or designs.
  • Confirm material requirements, tolerances, and any special instructions.

2. CAD Design

  • Create or refine a 3D model of the part using CAD software (e.g., AutoCAD, SolidWorks).
  • Specify dimensions, features, and tolerances as per requirements.
  • Ensure the design is optimized for manufacturability.

3. CAM Programming

  • Import the CAD model into CAM (Computer-Aided Manufacturing) software.
  • Generate the tool paths and machining strategies for CNC operations (e.g., cutting, drilling, milling).
  • Define parameters such as spindle speed, feed rate, and depth of cut.
  • Simulate the machining process to verify accuracy and efficiency.

4. Material Preparation

  • Source the required raw materials (e.g., metal sheets, rods, or blocks).
  • Inspect materials for quality assurance (QA) and confirm they meet specifications.
  • Cut the material to a manageable size if needed.

5. CNC Machine Setup

  • Load the CNC machine with the material.
  • Install and calibrate the required tools (e.g., drill bits, end mills).
  • Secure the material using clamps or a vice.
  • Zero the machine to align the tool and workpiece (set work offsets).

6. Machining Process

  • Upload the CAM-generated program (G-code) to the CNC machine.
  • Run a test cut or dry run to ensure no errors in the program.
  • Start the machining process and monitor for issues (e.g., tool wear, material shifts).

7. Quality Control

  • Inspect the fabricated part using tools like calipers, micrometers, or CMMs (Coordinate Measuring Machines).
  • Verify dimensions, tolerances, and surface finish against the design specifications.
  • Address any deviations by adjusting the process or reworking the part if necessary.

8. Post-Processing

  • Perform additional processes if required, such as:
    • Deburring or sanding for a smooth finish.
    • Heat treatment, if specified.
    • Painting, coating, or plating.

9. Assembly and Packaging

  • Assemble parts if part of a larger system.
  • Package the finished product for delivery to the customer, ensuring proper protection during transit.

10. Maintenance and Recordkeeping

  • Perform routine maintenance on the CNC machine.
  • Document production parameters, quality checks, and customer delivery details for future reference.
Scroll to Top