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As a professional CNC Machining service provider, EMAR specializes in delivering precision-engineered solutions for industries requiring high-accuracy mold production. This article will walk you through the complete CNC mold machining process, highlighting our technical expertise and quality assurance protocols.
1. Design and CAD Modeling
The process begins with CAD (Computer-Aided Design) modeling, where our engineers convert client specifications into 3D digital blueprints. Using advanced software like SolidWorks or AutoCAD, we optimize designs for manufacturability while ensuring tight tolerances (typically ±.005mm for mold components).
2. Material Selection and Preparation
We use premium-grade tool steels (P20, H13, S7) or aluminum alloys (6061, 7075) based on application requirements. Raw materials undergo ultrasonic testing to verify internal integrity before machining begins.
3. CNC Programming
Our CAM programmers generate toolpaths using Mastercam or PowerMill, selecting optimal:
Cutting tools (carbide end mills, ball nose cutters)
Spindle speeds (15,000-30,000 RPM for high-speed machining)
Feed rates (optimized for material and surface finish requirements)
4. Precision Machining Operations
The CNC mold machining involves sequential processes:
Roughing: Removes 80-90% material using high-efficiency milling strategies
Semi-finishing: Achieves near-net shape with .1-.2mm allowance
Finishing: Delivers Ra .4μm or better surface finish
EDM (if required): For complex geometries or hardened steels
5. Quality Control and Inspection
Every mold undergoes rigorous inspection using:
CMM (Coordinate Measuring Machine) for dimensional verification
Surface profilometers for finish analysis
Optical comparators for profile checking
Why Choose EMAR for Your CNC Mold Machining?
With 15+ years of experience in CNC machining services, EMAR offers:
50+ advanced CNC machines (5-axis, Swiss-type, and turning centers)
ISO 9001:2015 certified quality management
Fast turnaround (prototypes in 5-7 days, production in 2-3 weeks)
Comprehensive post-processing (heat treatment, polishing, coating)
Contact our technical team at www.sjt-ic.com to discuss your specific mold requirements and receive a DFM (Design for Manufacturing) analysis.
