Lasersko oplaščanje aluminijeve zlitine AlSi12CuNiMg s keramičnimi sestavinami

Kotnik, Benjamin (author), Šturm, Roman (mentor)

Aluminij je lahka in mehka kovina, ki ni obrabno odporna. V zaključni nalogi smo aluminijevo zlitino površinsko utrdili z laserskim oplaščanjem keramičnih sestavin. Pri tem smo pomerili debelino obloge in pretaljenega področja, doseženo trdoto v modificiranem površinskem sloju, zaostale in strižne napetosti na površini nastale obloge. Površinski sloj smo utrdili ter mu povečali trdoto in obrabno odpornost, zaostale in strižne napetosti pa so bile po laserski obdelavi zanemarljive.

• Language: Slovenian
• Keywords: laserji, lasersko oplaščanje, aluminij, integriteta površine, trdota, zaostale napetosti
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [B. Kotnik]
• Year: 2019
• Number of pages: XIV, 31 f.
• PID: 20.500.12556/RUL-110157
• UDC: 621.9.048:535:669.715(043.2)
• COBISS.SI-ID: 16931099
• Publication date in RUL: 12.09.2019

Secondary language

• Language: English
• Title: Laser cladding of aluminium alloy AlSi12CuNiMg with ceramic constituents

Abstract

Aluminium is a light and soft metal which is not wear resistant. In this final paper, we consolidated the aluminium alloy on the surface with ceramic constituents by laser cladding. We measured the thickness of cladding layer and melted zone, the achieved hardness in the modified surface layer, the residual and shear stresses on the surface of cladding layer. We achieved the consolidation of the surface layer. Its hardness and wear resistance increased, while residual and shear stresses were negligible after the laser treatment.

• Keywords: lasers, laser cladding, aluminium, surface integrity, hardness, residual stresses