Photo Etching, also known as chemical milling or photochemical machining, is a high-precision process used for manufacturing complex metal parts. It is ideal for producing high-quality heating films and coils with extreme accuracy.
Applicable Scope
Petroleum, chemical, and pharmaceutical precision filters
Electronic industry: Lead frames, metal substrates, and plate leakage
Precision optical and mechanical components
Plane springs and friction slices
Complex metal accessories and handicrafts
Compatible Materials
Stainless steel sheet, copper sheet, aluminum foil, ferronickel alloy, iron sheet, Nickel silver, and titanium alloy.
Production Capability & Quality
Capable of shaping varieties of materials with thicknesses ranging from 0.03mm to 1.2mm. The process allows for half-etching and pattern imprinting without hardware mold charges.
Process Flow:
CAD Output → Material Prep → Pre-treatment → Dry Film Lamination → Exposure → Developing → Etching → Stripping → Checking & Packing
Core Advantages
High Precision
Tolerance up to +/- 0.005mm
Smooth edges with no burrs or warping
Burr & Stress-free manufacturing
Efficiency
Low tooling costs
Short lead times for samples
Quick response within 24 hours
Frequently Asked Questions
1. What materials are suitable for photo etching?
We work with a variety of materials including Stainless steel, Copper, Aluminum, Brass, Nickel silver, and Titanium alloys.
2. What is the standard thickness range for etched heating elements?
The production capability allows for thicknesses ranging from 0.03mm up to 1.5mm depending on the material.
3. What are the tolerance levels for these products?
Our precision etching process typically achieves tolerances of +/- 0.01mm, with some specialized techniques reaching +/- 0.005mm.
4. Does photo etching require expensive hardware molds?
No, one of the main advantages is the low tooling cost. We use digital artwork (CAD/PDF) for film production, eliminating the need for expensive physical molds.
5. Can you handle complex geometric shapes?
Yes, photo etching is perfect for any complicated pattern or geometric figure, ensuring smooth surfaces on both edges without embossment or stress.
6. What is the typical lead time for samples?
Free samples can usually be provided within 1-2 days after the artwork and requirements are confirmed.