JLCCNC Blog

Metals for CNC

Brass vs Bronze for CNC Machining: How to Choose the Right Material

Brass and bronze metal billets placed side by side in a CNC machining factory, highlighting their different color and surface appearance. Choosing between brass vs bronze in CNC machining isn’t about memorizing alloy charts or academic definitions. It’s about what actually happens once the cutter hits the material. Tool wear. Cycle time. Surface finish. Scrap risk. Cost per part. On paper, brass and bronze look similar enough to confuse buyers and even junior engineers. In practice, they behave very d......

Jan 21, 2026

Surface Finishing Processes

Acrylic Polishing Guide: How to Achieve a Clear, Smooth Acrylic Finish

Technician inspecting a clear acrylic sheet under factory lights to check surface polish quality. Acrylic polishing is a critical surface finishing process used to improve the clarity, appearance, and performance of CNC machined acrylic (PMMA) parts. From simple hand polishing to machine polishing and industrial CNC acrylic polishing, different methods produce very different surface finishes, consistency levels, and risks such as heat buildup and acrylic cracking. This guide explains what acrylic poli......

Jan 20, 2026

Surface Finishing Processes

EMI/RFI Shielding for CNC Machined Parts: Methods, Materials & Conductive Surface Finishes

EMI/RFI shielding in CNC-machined parts refers to the use of conductive materials, surface finishes, and enclosure design to block, absorb, or redirect electromagnetic interference, ensuring stable performance of sensitive electronic systems. Unlike sheet metal or molded plastic housings, CNC-machined components require tailored shielding solutions due to tighter tolerances, complex geometries, and precision grounding requirements. Electronic systems are becoming increasingly compact, faster, and more......

Jan 14, 2026

Manufacturing Solutions

Online CNC Machining vs CNC Near Me: How Engineers Actually Decide

Choosing a CNC machining service often starts with a simple search: “CNC near me.” It feels safer to work with a shop you can drive to. If the shop is nearby, problems should be easier to solve—is that true? In reality, experienced engineers don’t decide based solely on distance. Modern manufacturing has changed. The best partner for your project might not be across town. Instead, it might be part of a global CNC company. Precision CNC machining center for one-off parts and online CNC service This art......

Jan 08, 2026

Surface Finishing Processes

What Is Deburring? The Ultimate Guide to Deburring Tools & Deburring Machines

A machined part may look complete, but sharp edges and raised material often remain after cutting. These defects are called burrs. Deburring is the manufacturing process used to remove them and bring a part to its final, usable condition. Burrs might seem small, but they can cause big headaches. Metal parts before and after deburring on an industrial conveyor belt finishing machine Deburring is the manufacturing finishing process of removing burrs—unwanted sharp edges or raised material—from machined ......

Jan 07, 2026

Industry Use Cases

Aerospace CNC Machining: Processes, Materials, Challenges, and Applications

(AI-generated) Aerospace machining plays a critical role in the manufacturing of aircraft, spacecraft, and defense systems, where safety, performance, and reliability are non-negotiable. From structural airframe components to complex engine parts, machining for aerospace requires extreme precision, strict quality control, and deep expertise in materials With the advancement of aerospace CNC machining, manufacturers can now produce highly complex geometries with tight tolerances while meeting demanding......

Dec 31, 2025