FabShop Magazine - March 2012 - 6
››› lasERs
the issue of floor space that’s needed for the welding system, remarks Dutzy. With a laser welder Ogihara doesn’t need as many welding stations, meaning that overall floor space is smaller. “We charge our customers floor space for our jobs. All this equipment is amortized over part costs, and we also have overhead costs for the use of our floor space for the cell. So the smaller the cell is, the cheaper it is for our customer, which drives the overall part cost down,” he notes. laser welding is the key Although Ogihara has used various methods of welding to assemble stamped parts, they tend towards spot and laser welding. These methods give them a better final overall part that enables Ogihara to remain competitive in reaching its customer’s specifications for quality in cost. Originally for laser welding, the company had two self-contained manufacturing cells that were constructed by an outside integration company. Each cell has a robot and a 4kW YAG-fiber laser. The laser beam is fed through a fiber to a collimator attached to the robot. The collimator focuses the beam for welding and is supplied by the company integrating the system. Each cell is specific for a particular part, notes Dutzy. Because of problems with the robots in the company’s first two laser cells, they needed to find another integrator for their next laser-welded part program. Therefore, Dutzy contacted Utica Enterprises, Utica, Mich., to quote an integrated laser system. “During our quoting process and our supplier evaluations, we ended up using Utica Enterprises, and this company recommended using an IPG diode-pumped-fiber 4kW laser,” says Dutzy. “At this point I really didn’t want to switch laser manufacturers, but there were cost benefits using the IPG laser. We would probably save close to 35 percent over using the other manufacturer’s laser for the initial cost,” he says. “We also found that the floor space needed with the IPG laser was much smaller. It only needs about one third the area compared to our other lasers. Once we discovered this, we talked to Mike Klos, general manager, at IPG Laser’s Novi, Mich., location so we could get more information on it. We also found that Utica Enterprises had never worked with the laser manufacturer that we were currently using. Utica Enterprises has its own laser-head collimator that they have never integrated with the other manufacturer’s fiber laser.” Dutzy also found that there were cost impacts with their other laser that they didn’t have with the IPG laser. For instance, their other laser has life-cycle timers built into the proprietary software that they couldn’t alter. If they receive an error code that says, “A filter has 20,000 hours on it and needs to be changed,”
FabShop Magazine - March 2012
Table of Contents for the Digital Edition of FabShop Magazine - March 2012
FabShop Magazine - March 2012
Publisher's Letter
Contents
Lasers
Top Fabricator
Press Brakes
Deburring
Punching
Laser Maintenance
New Products, People & Events
Perspectives: Hypertherm
Classified Ad
FabShop Magazine - March 2012 - FabShop Magazine - March 2012
FabShop Magazine - March 2012 - Publisher's Letter
FabShop Magazine - March 2012 - Contents
FabShop Magazine - March 2012 - Lasers
FabShop Magazine - March 2012 - 5
FabShop Magazine - March 2012 - 6
FabShop Magazine - March 2012 - 7
FabShop Magazine - March 2012 - 8
FabShop Magazine - March 2012 - Top Fabricator
FabShop Magazine - March 2012 - 10
FabShop Magazine - March 2012 - 11
FabShop Magazine - March 2012 - 12
FabShop Magazine - March 2012 - 13
FabShop Magazine - March 2012 - Press Brakes
FabShop Magazine - March 2012 - 15
FabShop Magazine - March 2012 - 16
FabShop Magazine - March 2012 - 17
FabShop Magazine - March 2012 - 18
FabShop Magazine - March 2012 - Deburring
FabShop Magazine - March 2012 - 20
FabShop Magazine - March 2012 - 21
FabShop Magazine - March 2012 - 22
FabShop Magazine - March 2012 - 23
FabShop Magazine - March 2012 - Punching
FabShop Magazine - March 2012 - 25
FabShop Magazine - March 2012 - 26
FabShop Magazine - March 2012 - 27
FabShop Magazine - March 2012 - 28
FabShop Magazine - March 2012 - Laser Maintenance
FabShop Magazine - March 2012 - 30
FabShop Magazine - March 2012 - 31
FabShop Magazine - March 2012 - New Products, People & Events
FabShop Magazine - March 2012 - 33
FabShop Magazine - March 2012 - 34
FabShop Magazine - March 2012 - Perspectives: Hypertherm
FabShop Magazine - March 2012 - 36
FabShop Magazine - March 2012 - 37
FabShop Magazine - March 2012 - Classified Ad
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