Laser cladding plungers
04-20-2016, 10:37 AM,
#1
Laser cladding plungers
Hi everyone,

I am working with fiber laser system now. What I want and working on is to deposit coating on different plungers (diameter from 50 up to 200mm, and length from 500 to 2500mm) using laser cladding instead of using HVOF, FVAF systems, because of their severe working conditions or too thick coating sometimes we have cracks. And it is not acceptable!! Does anyone have experience here? What alternative material to use instead of WC-Co; WC-Co-Cr for laser cladding system? As the mechanical properties of the coating have to be the same.

Best regards

Arturas
Reply
09-24-2016, 01:31 AM,
#2
RE: Laser cladding plungers
Hello, Arturas

AFAIK, LCC Coccola from Finland has some experience laser cladding large plungers.
But as you can find in this article from Kermetico Inc, there is an option to spray quite thick (up to several millimeters) non-porous hard WCCo, WCCoCr coatings without cracking.

Regards
Reply
09-24-2016, 09:49 AM,
#3
RE: Laser cladding plungers
(04-20-2016, 10:37 AM)Arturas Wrote: Hi everyone,

I am working with fiber laser system now. What I want and working on is to deposit coating on different plungers (diameter from 50 up to 200mm, and length from 500 to 2500mm) using laser cladding instead of using HVOF, FVAF systems, because of their severe working conditions or too thick coating sometimes we have cracks. And it is not acceptable!! Does anyone have experience here? What alternative material to use instead of WC-Co; WC-Co-Cr for laser cladding system? As the mechanical properties of the coating have to be the same.

Best regards

Arturas

Hi Arturas,
Powders such as WC-Co or WC-Co-Cr are hardly suitable for laser cladding. For melting You need mixtures of self-fluxing alloys (NiCrBSi) with coarse-grained tungsten carbide. For example, 50% NiCrBSi to 50% WC (50-100 microns).

Regards
Vadim
Reply




Possibly Related Threads…
Thread Author Replies Views Last Post
  Mechanical cladding Artyom 0 936 02-27-2019, 08:18 AM
Last Post: Artyom
  Laser thermal cycle test Max K 0 2,081 03-01-2016, 04:03 PM
Last Post: Max K
  Plungers for mud pump shantanu 1 2,578 02-19-2015, 03:04 AM
Last Post: Axis Machine
  Technical Characteristics of Rich Laser Cladding Technology lijianping 0 2,455 05-17-2014, 06:15 AM
Last Post: lijianping
  Features of laser cladding lijianping 0 2,200 05-14-2014, 09:15 AM
Last Post: lijianping
  Laser metal cladding rechnology lijianping 0 3,232 05-14-2014, 09:01 AM
Last Post: lijianping
  Laser Cladding onto 17-4 PH Grayso 4 6,577 03-01-2014, 11:09 AM
Last Post: makankp
Question about induction cladding littlejialei 5 6,967 03-12-2011, 01:50 AM
Last Post: Gordon
  Laser Cladding Stellite#6 Kedarnath 6 17,673 02-04-2011, 01:51 PM
Last Post: Nick4u1
  Dairy Homogenizer Plungers (pistons) Johnson E 2 5,634 03-01-2009, 10:09 PM
Last Post: Johnson E
  increase efficiency of LTH (Laser Transformation Hardening) melrose 1 5,889 06-18-2007, 04:30 PM
Last Post: Gordon



Users browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd