Beyond the Tenth: Why Moore Jig Grinding is the Secret to Mission-Critical Precision

Introduction

In the world of precision manufacturing, the difference between a successful launch and a catastrophic failure often comes down to "the tenth"—one ten-thousandth of an inch. While many CNC shops can hit standard tolerances, few can maintain accuracy once a part has been hardened or when the geometry becomes complex.

At Accura CNC Supply, we utilize Moore Jig Grinders to bridge the gap between "standard" and "sub-micron" precision. But what exactly is jig grinding, and why is it the gold standard for industries like aerospace, medical, and high-end tool and die?

What is Jig Grinding?

Jig grinding is a specialized machining process used to finish holes, contours, and complex shapes with extreme accuracy. Unlike traditional milling, which uses a rotating cutting tool, jig grinding uses a high-speed grinding wheel.

This process is typically reserved for the final stage of manufacturing. After a part has been machined and heat-treated (which can often cause slight distortions in the metal), jig grinding is used to "correct" the part, ensuring that every dimension is exactly where it needs to be.

The Moore Advantage: Why Equipment Matters

Not all jig grinders are created equal. The Moore Jig Grinder is legendary in the machining world for its mechanical stability and thermal consistency. Here is why Accura relies on Moore equipment for your most demanding projects:

• Extreme Positional Accuracy: Moore machines are designed to locate holes and surfaces within millionths of an inch.
• Handling Hardened Materials: Once steel is hardened to 60+ HRC, standard carbide tools struggle. Jig grinding allows us to finish these hardened parts without compromising the integrity of the material.
• Superior Surface Finish: For components like valve bodies or fuel injection nozzles, a mirror-like finish is required to prevent friction and wear. Jig grinding achieves finishes that traditional milling simply cannot replicate.

When Should You Choose Jig Grinding Over Standard Milling?

While CNC milling is efficient for bulk material removal, you should specify jig grinding for your project if:

• You are working with hardened alloys: If your part requires heat treatment, jig grinding is the only way to ensure holes remain perfectly round and precisely positioned after quenching.
• Interchangeability is critical: If you are producing parts that must be perfectly interchangeable in a high-speed assembly, the repeatability of a Moore Jig Grinder is unmatched.
• Geometric Dimensioning & Tolerancing (GD&T) is tight: When your blueprints call for extreme perpendicularity or concentricity, grinding provides the control needed to hit those marks.

Real-World Applications

At Accura CNC Supply, we see the impact of this precision across several sectors:

• Aerospace: Bushings and landing gear components that must withstand extreme pressure.
• Medical: High-precision molds for surgical instruments where there is zero room for error.
• Tool & Die: Creating the master dies that other manufacturers use to stamp out thousands of parts.

Conclusion: Precision You Can Trust

At Accura CNC Supply, we don’t just provide parts; we provide peace of mind. By combining our HAAS and Citizen-Cincom capabilities for production with the ultra-precision of Moore Jig Grinders, we offer a full-spectrum solution for your most challenging designs.

Ready to discuss your next high-precision project?

Contact Accura CNC Supply Today for a quote on your tight-tolerance components. Email [email protected] — we respond within 24 hours.