Synrad's Applications News
Synrad, Inc. - www.synrad.com
Thursday, April 29, 2010
Issue 236

Applications at a Glance
Laser Marking Plated Steel
Cutting Corian Countertop Samples
News from Synrad
New 4-position L- Bracket for FH Flyer Marking Head
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SYNRAD's sealed CO2 lasers are used in a variety of industrial processes including cutting, welding, drilling, and marking. This news brief features news and information from Synrad, and highlights some of the interesting materials and products that are processed daily by Synrad's line of CO2 lasers and marking heads

Featured Application: Laser Marking Plated Steel

CO2 lasers are widely used in steel marking applications. This particular application demonstrates the ability of a CO2 laser to permanently mark a plated mild steel component. The mild steel part is hardened and then coated with a zinc-nickel anti-corrosion plating before reaching the marking process.

To create permanent, high-contrast marks on these components, we set up a Firestar t80 laser and an FH Flyer marking head equipped with a 125 mm high-power lens that creates a 180-micron (0.007") focused spot with a 3 mm (0.118") depth of focus. The short rise time (< 75 µsec) and square output pulse of the t-series technology means that a greater amount of laser energy is absorbed, which is especially desirable when working with high threshold materials like metals.

Laser Marked Steel Part
This hardened mild steel part is plated with a
zinc-nickel coating and then laser marked
with a 15-character text string. The mark was completed in 4.92 seconds using 80 watts
of power at a speed of 1 inch per second.
 
 

We began mark file development by creating a 15-character text object in WinMark Pro using the "Simple" stroke font. We set a Text Height of 5.52 mm (0.2173") and added 0.38 mm (0.015") of Extra Character Spacing. On the Marking tab, we set a Power, duty cycle percentage, equivalent to 80 watts, set a PWM Frequency of 20 kHz, and entered a marking Velocity of 25.4 millimeters per second (1.0 inch/sec).

Using these mark parameters, we created a permanent, high-contrast mark on these zinc-nickel plated steel components in a cycle time of 4.92 seconds per part.



Cutting Corian® Countertop Samples

DuPont™ Corian® is a solid-surface material where the color and pattern seen at the surface extends throughout the material. In the home or office, Corian is frequently used for countertops, backsplashes, wall cladding, and sinks. Even furniture and home accessories are fabricated from Corian, which is shaped by cutting, drilling, routing, or bending.

For this application test, we cut various shapes out of 12.1-millimeter (0.475") thick Corian samples measuring 102 mm by 102 mm (4" x 4") square. Our CO2 laser cutting setup consisted of a Firestar f400 laser and an XY "flying optics" table. The cutting table was fitted with a 127 mm (5.0") positive meniscus lens that provides a 203-micron (0.008") focused spot with a 6.35 mm (0.25") depth of focus. We used an air assist at 4.1 bar (60 PSI) to eliminate bottom-side flaming through the cut.

The samples shown were cut using 400 watts of power at a speed of 0.31 meters per minute (12 in/min). Cut edges are clean and dross free with a slight vapor residue on the bottom surface. Restoring the exterior surface gloss of laser cut edges is no different than the procedure used to finish Corian that is machined with traditional mechanical saws or routers - simply sand and buff cut edges to the desired sheen.

Laser Cut Corian Samples

These 0.475" thick Corian® samples were cut using 400 watts of power at a rate of 12 inches per minute. An assist gas pressure of 60 PSI provides clean, dross-free cut edges.


 

 


New 4-Position L-Bracket for FH Flyer Adds Increased Flexibility
4-Position L-Bracket and FH Flyer Marking Head
With the new 4-position L-bracket, Flyer can mark in any one of 4 possible orientations.

 

A key component to any industrial laser marking system, Synrad's FH Flyer galvo based marking head is an effective solution for OEMs and Systems Integrators alike. The component-level Flyer is easily paired to any Synrad CO2 laser from 10 to 125W to accomplish a wide range of marking applications.

Synrad's new 4-position L-bracket adds even more flexibility to Flyer, enabling customers to mount the head in any one of four possible orientations. Use Flyer in the standard marking position, rotate 90° CW or CCW, or rotate 180°. Flyer produces the same crisp mark quality from any angle, and the added flexibility enables customers with specific system configurations to streamline their manufacturing process, increase efficiency and save space on the production floor.

A standard marking setup consists of the Flyer marking head, CO2 laser with AC/DC power supply, WinMark Pro software, and our laser mounting kit, which includes a mounting rail with L-bracket. A user-supplied computer is also required for operation. The new 4-position L-bracket is available as an additional upgrade item. Contact your local Synrad sales representative for more information on this product.

A drawing of the 4-position L-bracket is available on our website in pdf format at: http://www.synrad.com/fhseries/fh_drawings/300-20165-01B_4Pos Bracket.PDF


Browse Synrad's Applications Database
Search our online library for more applications of Synrad's sealed CO2 laser technology. Search by keyword, material, or process.
http://www.synrad.com/search_apps/Default.htm

Contact Us:
E-mail questions or comments to synrad@synrad.com

Synrad, Inc.
4600 Campus Place
Mukilteo, WA 98275
Tel: 1-425-349-3500
Fax: 1-425-349-3667
E-mail: synrad@synrad.com

 
 
       
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