


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.
