Advantages Of Laser Cutting Vs Mechanical Cutting

Being able to control a broad range of laser parameters precisely helps transform a flat sheet of metal into numerous parts with a variety of characteristic without the need of tooling. Read on to learn about the advantages of laser cutting over mechanical cutting.

Cleaner Cuts

Lasers allow for smaller and cleaner cuts, with complex detail and good edge quality in sheet metal or round, square, rectangular, and/or triangular tubing. Unlike with mechanical cutting, cuts are burr-free and can be incredibly intricate. Lasers can also be used to accurately cut wood, plastics, ceramics, or wax.

3D laser cutting is also available for parts with unique hole geometries and CNC laser cutting is available for creating curves and creating complex 3D structures. 6-axis laser cutting capabilities allow for cuts at any desired angle for weld prep, plus achieve the highest accuracy for easy fit-up of assemblies – all in a single program cycle.

Greater Accuracy – Less Wasted Metal

Mechanical cutting involves contamination and wear and tear of the blades on the cutting machines, but lasers have no actual surface to wear out, so they can cut as many identical products as you need without wearing out. Laser cutting also produces greater consistency from part to part. And laser cutting isn’t just for cutting out parts. Lasers can cut holes straight through the metal, etch, or even counter-sink holes.

Additionally, because the laser is so precise there is less wasted material surrounding the cut. And even furthermore, because there are less wasted materials, you can cut down on the time and effort it takes to clean up every day.

Minimal Operator Intervention

Laser machines are fairly easy to use and don’t require a large amount of skill or training. With newer, modern day laser cutting machines the number of steps that require human action have been dramatically reduced, allowing for more efficient part nesting capability due to greater programming flexibility.

Quicker Production

Most laser equipment also comes with automatic load/unload features, adding efficiency for the lasers to run while an employee is on break or at lunch, and allowing for much quicker production of items.

By using lasers you will have the precision parts you need much quicker and more cost effectively than with other types of machines. Lasers can be used to cut carbon steel up to 1″, stainless steel up to 0.5″, and aluminum up to 0.375″.

Laser Marking and Laser Etching on Glass for Industrial Applications

The marking of glass for industrial use has been done for hundreds of years. In the past the methods used have included ink stamp marking, sand blasting, air grit, acid etching, scribing etc.

Industrial applications of glass marking include:

1. Marking of safety information on safety glass used in commercial and residential construction. This includes glass areas around doors and/or entrance and exit locations.

2. Marking of glass for commercial and residential construction to identify the glass or door manufacturer [for product identification and marketing/sales activity]

3. Marking of headlamp or tail light lens in automotive applications for manufactures name, year of manufacture and/or part number. Also used in the manufacture of televisions for marking mirrors and lens.

4. Marking of serial number, product identification, or other manufacturing information for the prevention of theft and validation of warranty claims

5. Marking serial numbers, part numbers, text, or bar codes allowing for parts to be tracked though the production process until final assembly and shipment

The traditional methods of glass marking all involve contact with the surface of the glass product which exposes the product to stress and potential damage. Co2 lasers offer significant advantages for marking glass products. The RF excited sealed beam Co2 laser coupled with a galvo head and software offers the fastest, cleanest, most reliable method for marking and etching glass.

A Co2 laser can laser mark glass with bar codes, especially 2-D or data matrix bar codes, which can easily be coupled with vision systems for reading the data contained in the bar code. The use of bar codes on glass allows for the product to be tracked all the way through the production process until final assembly. This helps assure a continuous uninterrupted supply of product. The laser marked or laser etched bar code can also be used after the sale of the product for identification purposes and validation. This helps to eliminate warranty costs related to counterfeit or unauthorized products.

A Co2 laser marked or laser etched bar code can also be read by vision systems in the manufacturing process to determine the identity of the part. Examples include prescription strength of eye glass lens, or the type of front headlamp lens used in a Honda Civic. This ensures that the part is sorted and used properly throughout the manufacturing process and that the correct number of parts is produced based on anticipated sales for final assembled components.

The advances of Co2 laser marking of glass over traditional methods are extensive. These include:

o No contact with the part as in scribing methods thereby reducing the possibility of breakage to and damage of the part, as well as elimination of the maintenance required for the scribe unit

o No solvents, thinning, or cleaning agents to purchase and keep in stock as in the case of ink marking or ink printing systems, thereby significantly reducing costs of operation and eliminating the need for continuous maintenance associated with these various ink printing technologies

o No pads for ink printing to maintain as they can fall to an angle or become turned sideways causing the printed image on the glass to appear sideways or not square

o No need to stop the glass in place and make sure a secure fit with the rubber mask is formed as in the case of Airgrit marking

o With Co2 laser marking for industrial glass applications the product can be marked on the fly [while moving]. If stopped or ‘squared’ for marking, five to eight lines of text plus logo’s can be laser etched in less than 0.5 of a second

o With Co2 laser marking no supplies are necessary and no secondary process exists for cleaning or maintenance

o With Co2 laser marking changes to the mark [different text, different logo, difference shape, etc] can be accomplished with a simple click and drag command of the mouse

Co2 laser marking for glass in industrial applications is the fastest, most effective, least costly method in which to mark the product.