Introduction to ID Cladding

22 Pages·2012·3 MB·English

by  Aravind Jonnalagadda

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