JLCCNC Blog

Surface Finishing Processes

Optimizing Manufacturing Efficiency: A Guide to Computerized Numerical Control (CNC) Machining Surface Finishes

Why we Need Surface Finishing in CNC Machining When it comes to CNC machining, surface finishing plays an essential role in boosting corrosion resistance, promoting cleanliness and hygiene, boosting productivity, preserving quality control, and improving appearance. It assists in converting rough machined parts into polished, useful, and aesthetically pleasing parts that satisfy the required standards and client expectations. To be specific, surface finish has a big impact on a product's aesthetic app......

Dec 28, 2023

Surface Finishing Processes

How to choose between Laser marking and UV printing?

Choosing between laser marking and UV printing for CNC machining service depends on various factors, including the specific requirements of your project. Here are some considerations to help you make an informed decision: (Left: Laser Marking/Right：UV Printing) Material Compatibility: Laser Marking: Works well on a wide range of materials, including metals, plastics, ceramics, and more. It provides high precision and is suitable for detailed markings. UV Printing: Works well on a wide range of materia......

Dec 29, 2023

Plastics for CNC

ABS vs Polycarbonate: Which Plastic Is Better for CNC Machining?

● Choose ABS for lower cost, faster machining, and stable tolerances (non-transparent parts). ● Choose PC for impact resistance and transparency, but expect higher machining risk and cost. ● For thin walls + tight tolerances, ABS is usually safer. ● For clear guards/windows, PC is the only practical option (often needs polishing). This guide compares ABS and polycarbonate specifically from a CNC machining perspective, helping engineers select the right plastic based on machining behavior, tolerance ri......

Jan 30, 2026

Sheet Metal Fabrication

CNC Turret Punching: How It Works, DFM Guidelines, Cost & Services

(AI generated) CNC turret punch press operating in a sheet metal fabrication workshop. Turret punching can produce holes and formed features efficiently; however, part quality and cost depend on material selection, tooling condition, and process planning. For enclosures or panels with many repeatable features, turret punching is often faster and more cost-effective than laser cutting, provided the geometry, material, and tolerance requirements match the process capabilities. This guide explains how CN......

Jan 29, 2026

CNC Machining Fundamentals

Fillet in CNC Machining: How to Choose Radii, Reduce Cost, and Compare Chamfers

Fillets are functional features in CNC machining—not decorative ones. Their radius and placement affect tool selection, cycle time, and part strength, especially in internal corners where cutting tools limit what can be produced. This guide explains what fillets are, how they’re machined, how they compare with chamfers, and how to choose radii that balance performance and cost. Fillet in CNC Machining [image source: https://www.shutterstock.com/ AI Edited] What Is a Fillet in CNC Machining? In enginee......

Jan 28, 2026

Sheet Metal Fabrication

Sheet Metal Fastening: Methods, Fasteners, and DFM Best Practices

(AI-generated) Close-up of a sheet metal enclosure fastened with screws and rivet nuts in an industrial assembly workshop Sheet metal fastening is one of those things that looks simple on a drawing and quietly decides whether your part feels solid, or rattles, strips, or cracks six months later. The material is thin, forgiving in some ways, brutally unforgiving in others. Every hole, thread, and fastener choice leaves a permanent mark on strength, cost, and how painful assembly will be. From a DFM sta......

Jan 27, 2026