• Title/Summary/Keyword: High viscosity bronze powder

Search Result 3, Processing Time 0.018 seconds

Characteristic of Laser Cladding Process with High Viscosity Bronze Powder and Al-alloy (고점성 청동분말을 이용한 알루미늄 합금의 레이저 클래딩 특성)

  • 오동수;전병철;김재도
    • Proceedings of the Korean Society of Laser Processing Conference
    • /
    • 2001.05a
    • /
    • pp.31-34
    • /
    • 2001
  • Laser cladding Processing allows rapid transfer of heat to the material being minimum conduction into base metal. The effects of CO$_2$ laser cladding with high powder were investigated. High viscosity bronze powder consists of bronze powder used at a high temperature. The material has a high viscosity So that it can be substrate. Therefore. Laser cladding can be processed on a curved or slope surface. CO$_2$ laser cladding was designed It consists of the high viscosity bronze powder the shielding gas system and the preheating system The high viscosity powder properly at 0.3g/s and 0.50g/s. Because of the metallic bond between bronze per the hardness of dilution layer was suddenly increased. Experimental as results viscosity mixed powder can be a useful cladding material.

  • PDF

Characteristics of $CO_2$ Laser Cladding with High Viscosity Mixed Powder (용제와 혼합한 금속분말의 $CO_2$ 레이저 클래딩 특성)

  • 김재도;전병철;이영곤;오동수
    • Journal of Welding and Joining
    • /
    • v.19 no.5
    • /
    • pp.481-485
    • /
    • 2001
  • Laser cladding processing allows rapid transfer of heat to the material being processed with minimum conduction into base metal. The effect of $CO_2$ laser cladding with high viscosity mixed powders was investigated. High viscosity mixed powder consists of bronze powder and flux that is used at a high temperature condition. The mixed powder has a high viscosity that it can be easily pasted over a curved or slope substrate. The device for mixed powder was designed and manufactured. It consists of the high viscosity mixed powder feeding system, the preheating system and the shielding gas system which prevents the clad layer from being oxidized. The results of experiment indicated that the feed rate of high viscosity mixed powder was important for later cladding with mixed powder feeding. The high viscosity mixed powder and substrate must be preheated to prevent porosity from breaking at the clad layer. The experimental result shows that the high viscosity mixed can be applied for laser cladding process.

  • PDF

Characteristics of Cladding Process with High Viscosity Mixing Powder Using $CO_2$ Laser ($CO_2$ 레이저를 이용한 고점성 혼합분말의 클래딩 가공 특성)

  • 이영곤;전병철;오동수;서병권;김재도
    • Proceedings of the KWS Conference
    • /
    • 2000.10a
    • /
    • pp.256-259
    • /
    • 2000
  • High viscosity mixing powder is a very useful material for laser cladding. This material has a high viscosity so that it can be sticked to substrate. Therefore, Laser cladding can be performed on a curved or slope surface. Laser cladding can be easily performed with the material instead of wire that is difficult to be manufactured in some case. In this experiment, it was used a high viscosity mixing powder which consists of a high temperature flux and a bronze powder. And AC2B alloy material was used as a substrate. Flux prevents the clad layer from being oxidized and increases bonding property between substrate and cladding material. It makes possible to laser cladding at low level energy.

  • PDF