Suitable Metals for Etching
Design Guide for Photochemical Machining
When designing chemically machined parts, there are certain guidelines which will help expedite production.
Dimensions & Tolerances
Typical Dimensions & Tolerances
There are a few design rules which express practical limitations when the dimensions under consideration approach the thickness of the metal. The most common rules are as follows:
Inside Radius (IR) |
= Material Thickness (T) |
Outside Radius (OR) |
= 75% of Material Thickness (T) |
Hole Diameter (D) |
= 110% of Material Thickness (T) |
Bevel (B) |
= 10% of Material Thickness (T) |
Space between Holes (W) |
= 110% of Material Thickness (T) |
Center to Center (C/C) |
= Artwork |
Typical Tolerances are +/- 10% of material thickness (T) |
The etching process creates a bevel (B). As a rule of thumb when etching from two sides the bevel (B) is approximately 10% of the metal thickness.
Metals
Italix has the capability to chemically machine the following materials:
Chemical Machinability of Metals |
Good |
Alloy 42, Alloy46, Alloy 52, Brass, Copper (C101, C102, C110, C151 copper, C17200 Beryllium copper, C19210 copper, C194 copper) Copper Nickel, Constantan, Cold Rolled Steel, Copper clad Duroid, HyMu (80 & 800), Inconel 600, Inconel X 750, Invar 36, Kovar, Ni-Silver, Nickel 200 & 201, Permanickel, Phosphor Bronze, Spring Steel, Stainless Steel (Ph 15-7, Ph 17-7, 301, 302, 304, 305, 316, 321, 347, 410, 420, 430, & 215), Vandium |
Good to Fair |
Aluminum, Gold, Monel, Ni-Chrom 80-20 |
Common Thickness Range |
0.0002 in. (0.005 mm) to 0.125 in. (3.175 mm)
|
Examples of Parts Produced by Italix
Aperture Strips
Anodes
Bearing Retainers
Bookmarks
Bus Bars
Cams
Carrier Plates
Cathodes
Cavity Lids
Chip Carriers
Circuit Plates
Christmas Ornaments
Contacts
Contact Arms
Clip Fingers
Covers, Solder Seal
Covers, Seam Seal
Covers, Laser Weld
Diaphragms
Discs
Drive Bands
Electrical Connectors
Electrodes
Electron Tube Shielding
Electronic Chassis
Elements
EMI Shielding
Encoder Discs
Extendible Antennas
Filter Elements
Filter Supports
Flat Springs
Flexures
Front Panels
Fuel Cell Anodes & Cathodes
Fuel Nozzles
Grids
Ground Springs
Heat Sinks
Heater Elements
I.D. Plates
Instrument Dials
Instrument Gears
Integrated Circuit Connectors
Jewelry, All Finishes |
Laminations
Lids
Leadframes
Magnetic Recording Head Laminations
Masks, Evaporation
Magnetic Shielding
Medical Devices - External & Implantable Medical instrument Probe Shields
Metal Scales
Metal Stencils
Microelectronic Masks
Micro Forceps
Microwave Components
Motor Laminations
Name Plates
Ornaments
Pressure Sensing Diaphragms
Radar and RF Antennas
Retainers
Retaining Rings
Reticles
Ribbon Shields
RF Shielding
Rotor Brushes
Rotor Switches
Screens - All Types
Shaft Encoders
Shaped Shims
Shims
Shutter Blades
Springs
Spring Clips
Step Lids
Strain Gauges
Strap Suspension Assemblies
Surgical Blades
Survival Blades
Switch Blades
Thermal Planes
Thermal Switch Components
Tooling Templates
Translators
Washers
Vacuum Masks |
Contact Us Please contact us at 408-988-2487 or sales@italix.com.
|
