Introduction to ID Cladding PDF
Preview Introduction to ID Cladding
New advancements in ID Cladding Technology Aravind Jonnalagadda Craig Bratt Fraunhofer USA Center for Coatings and Laser Applications (CCL) 46025 Port St Plymouth, MI USA Fraunhofer USA http://www.ccl.fraunhofer.org/ www.ccl.fraunhofer.org Tel 734 – 738-0550 Overview • Introduction • Concept • Components and Product Specifications • Cladding results • Advancements • Reliability and performance • Conclusions and future work Introduction to ID Cladding – Nozzle technology for cladding on outer diameters is well established – Cladding nozzles developed by Fraunhofer and others have been used in the industry for more than 20 years – These nozzles are robust, need minimal maintenance and deliver precise amounts of powder to form a Fraunhofer USA clad deposit www.ccl.fraunhofer.org Introduction to ID Cladding – Market research in 2006 indicated several potential applications requiring laser cladding inside tubes. These included: • Bearings / Housing etc used in Oil field • Plastic and extrusion components (injection moulding) • Components used in paper and pulp industry • Defense Applications (Army and Navy components) – Some applications were being clad with conventional techniques such as brazing and PTA but not laser Introduction to ID Cladding Objective: Develop cladding device capable of cladding inside tubes and hard to reach places Design requirements: – To deliver consistent powder flow and laser beam in compact head at depth of 1 meter (39”) inside tubes – Clad inside tubular parts of diameter 4” or less – Water cooled head with no external piping for supply delivery(cooling water / powder / shield gas / laser beam delivery) Components Fiber holder Collimator Collision break away Arm Process input block Process end Beam bender with CCD Camera mount Components – Processing end Powder Delivery Unit Quick change cover glass holder Powder nozzle Technical Specifications • Minimum tube diameter: 3.5 in (~ 88.9 mm) • Maximum reach: 39.3 in (~ 1000 mm) • Maximum laser power: 3000 Watts • Compatible lasers: Fiber laser, Disk laser, Nd: YAG laser Compatible materials: Nickel base, Cobalt base, Iron base, Carbides in Metal Matrix Powder feed rate: Up to 60 grams/min (7.9 lbs/hour) of Tungsten Carbide/Ni Base Deposition thickness: 0.5 mm- 2 mm (0.020”- 0.080”) / layer Advancements in ID head development ID 1 (Release date: 03/2008) • 18” reach, 4” Minimum diameter • Side axis powder feed • Designed for high deposition rate build up overlay www.ccl.fraunhofer.org Advancements ID 2: (Release date: 03/2009) • 4 ” Minimum diameter • Available in both 18” reach and 39.4” reach • Designed for high deposition rate build up overlay
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