127 N. Walnut St. P.O. Box 7 Mansfield, Ohio 44901
Phone:419-525-2511 Fax:419-525-2941 E-mail mansgraph@aol.com

 


MANSFIELD GRAPHICS photo chemical machining permits comparatively inexpensive part fabrication of most metals from thin foil to 1/16 inch sheet or thicker, depending on tolerances required.

1. ORIGINAL DRAWING.

Customers provide us with CAD data or an original, full-dimensional formed or flat blank drawing with tolerances of desired part.
2. ART & FILM TOOLING.

We prepare artwork, compensating for our process, using computer aided design software and electronically send to a photo plotter. Every metal and each thickness of that metal varies as to the dimensional tolerances obtainable. Data from our own research and development experience enables us to accurately predict those tolerances.
3. METAL PREPARATION.

Metals are thoroughly cleaned and dried before being coated front and back with a photosensitive “resist”. The photographic image(Step 2) is then exposed onto the resist with a two-sided negative. The printed image is developed and then baked to harden the resist.
4. ETCHING.

The metal is then etched in a precisely timed chemical bath and inspected continuously until the unwanted metal is removed. The portions of the metal protected by the resist become the finished part.
5. CLEANING.

After withdrawal from the bath, all photosensitive resist is chemically removed.
6. INSPECTION.

Inspection of the parts is carried out continuously during the PCM process to assure their accuracy to the original drawing and tolerances. After cleaning, the parts are moved to the quality area for final or intermediate inspection and shipping or secondary.
7. SECONDARY PROCESS.

Secondary operations are monitored throughout the manufacturing of secondary processes and a final inspection is performed when the operation is complete.