Laser Etching Stainless Steel Corrosion

Chromium oxide is formed naturally when chromium reacts with oxygen.

Laser etching stainless steel corrosion.

After laser etching part numbers we have the instruments passivated for corrosion resistance. Some of the latest results of the material analysis and corrosion tests of the laser treated material are presented. Our systems optimize these products by marking them for essential tracking and identification. Laser engraving should be used to get the most resistant marks.

These devices also require laser marking for identification tracking and traceability in accordance with unique device identification udi requirements. Evaluated the influence of the laser marking parameters the specifically pulse energy and engraving rate on the corrosion resistance of astm f139 austenitic stainless steel laser marked surface by the use of yag laser beam using of electrochemical methods. There is a growing need to apply identification informational and logo marks to stainless steel devices and products and these marks must meet several strict criteria which largely preclude the use of traditional non laser techniques such as printing or engraving. At the same time these parts also require laser marking for identification tracking and traceability in accordance with new unique device identification udi requirements.

The conclusion drawn for their study was the surface finishing of stainless. This thin protective layer is composed of chromium oxide. Because stainless steel tools must avoid corrosion they undergo passivation which is a treatment process consisting of coating metals. Possibilities and limitations of steel laser marking are discussed.

The primary material in use is stainless steel 17 4 ph heat treated to h 900 condition. If we laser etch before passivation the area of laser etch corrodes after autoclaving. For high speed marking laser etching is the best process for steel surfaces. Many stainless steel medical tools and devices require passivation to help withstand corrosion and handle numerous autoclave cycles.

At tykma electrox our laser systems are adept at corrosion resistant laser engraving for use on various single and multi use stainless steel tools and equipment. Laser engraving stainless steel leads to corrosion. After passivation our laser etching is all but non existent. Laser marking of stainless steel using the pulsed fiber laser spi g3 is described in the contribution.

In fact any method that digs markings on the surface deep or shallow will remove this layer. Many single and multi use stainless steel medical tools and devices require passivation to help them withstand corrosion and handle numerous autoclave cycles.