Photo Etching – Chemical Etching

Chemical milling corrosively machines away selected sheet metal material to produce a complex part with fine detail.  Photo etching can be used as an alternative to stamping, punching, water jet cutting or EDM for very thin gauge parts.

Typical material thickness-under 0.05” (1.3mm).

This process is also called Photo chemical machining – PCM, Chemical etching, Chemical milling.

 

  • Stainless Steel , Copper , Brass , Aluminum
  • Maximum size sheet:  11.8 in x 23 in
  • Pressing plus etching available

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Thickness Tolerance
≤ 0.002 in +/- 0.0002 – 0.0004 in
0.002 – 0.005 in +/- 0.0004 – 0.00078 in
0.005 – 0.008 in +/- 0.0012 – 0.0016 in
≥ 0.01 in +/- 0.002 in

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Thickness Minimum Hole Diameter
0.002 – 0.004 in 1.2x material thickness (in)
0.006 – 0.0078 in 1.1x material thickness (in)
≥ 0.01 mm 1.0x material thickness (in)

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Thickness Minimum Line Width
0.004 in 0.0025 in
0.006 – 0.0078 in 0.004 in
≥ 0.01 in ≥0.006 in

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Etch profile is maintained at approximately 10-20% of the material thickness.

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Our most commonly used materials:

  • Copper and Copper Alloys
  • Stainless Steel: SS304, SS301, SS302, SS316, SS430
  • Nickel & Nickel Alloys
  • Mild Steels and Fe-Alloys

Our Services

  • Engineering & Design Support
  • Global Sourcing
  • Quality Control & Inspection Services
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