[Actual Problems] Marking/Processing ProblemsPosted by gemlasersyao on February 2nd, 2018 Discover GEM solutions used to solve problems in real work sites on this page. Also, learn the tricks behind on-site improvements. Direct Marking on Surfaces Painted for Rustproofing However, the paint provides rustproofing, so it is pointless if this paint is peeled off. What should we do? Solution With laser marking, no running costs are incurred. More than anything, laser marking has the key advantage of marking products in a way such that the marks will not fade. Laser markers contribute greatly to process improvements. * GEM makes no guarantees regarding corrosion of painted products after marking. Be sure to perform evaluations such as salt spray tests. Processing/Marking on Front and Back Surfaces at the Same Time However, our installation space is limited, so it is difficult to install two units to process both the front and back of these cables. What should we do? Solution In this case, it is possible to use mirrors to reflect the optical axes of a single laser marker in order to process both the front and back sides. What's more, with 3-Axis control, there is no need for tooling changes even if the cable diameter changes. This is an original manufacturing process that is only possible with GEM products. By using a laser, it is possible to perform processing that does not damage the internal conductor. Also, laser markers are maintenance free, which eliminates any concerns of the edged tools deteriorating. Laser markers contribute greatly to improved quality and increased yield. Thick-line Marking without Increasing the Machine Tact Time However, when we configure the settings for thicker lines, the marking time becomes longer, which makes it impossible to meet the machine tact time. Do you have any suggestions for things that we can try? Solution However, this naturally corresponds to an increase in marking time. In this situation, it is possible to perform marking with slightly thicker lines by misaligning the focal point in order to create a defocused state. This simply widens the single lines, so there is no effect on the marking time. When the Color Generated on the Resin Package Varies between Different Products The same line is used for multiple different models, so we have to set the conditions every time, which is difficult. Do you have any suggestions for things that we can try? Solution Generally speaking, the shorter the wavelength of a laser, the higher its energy and the higher its absorption coefficient with the material. An SHG wavelength (green) laser has a wavelength of 532 nm and can perform marking with good color generation and visibility under the same conditions even if the resin differs. With an SHG wavelength (green) laser, contrast marking under the same conditions is possible even if the material differs. What's more, with the switch to low-profile packages, laser markers also meet needs such as for shallow engraving marking with minimal damage to the internal circuit. Like it? Share it!More by this author |