Baba Naoki, Watanabe Ikuya, Tanaka Yasuhiro, Hisatsune Kunihiro, Atsuta Mitsuru
Department of Developmental and Reconstructive Medicine, Division of Fixed Prosthodontics and Oral Rehabilitation, Nagasaki University Graduate School of Biomedical Sciences, Japan.
Dent Mater J. 2005 Dec;24(4):550-4. doi: 10.4012/dmj.24.550.
This study investigated the joint properties of Fe-Pt alloy laser-welded to Co-Cr alloy. Cast plates (0.5 x 3.0 x 10 mm) were prepared with Fe-Pt and Co-Cr alloys. Fe-Pt plates were butted against Co-Cr plates and laser-welded using Nd:YAG laser. Control and homogeneously welded specimens were also prepared. Laser welding was performed with and without argon shielding. Tensile testing was conducted, and both fracture force (Ff: N) and elongation (El: %) were recorded. There were no differences in the Ff value between the specimens with and without argon shielding for the welded Fe-Pt/Co-Cr. Lower Ff value of the welded specimen was obtained in the order of Fe-Pt alloy < Fe-Pt/Co-Cr < Co-Cr alloy. The results indicated that Fe-Pt welded to Co-Cr had Ff values between the values of homogeneously welded Fe-Pt and Co-Cr alloys. Argon shielding, on the other hand, had no effect on the weld strength between Fe-Pt and Co-Cr alloys.
本研究调查了铁铂合金与钴铬合金激光焊接后的接头性能。用铁铂合金和钴铬合金制备了铸板（0.5×3.0×10毫米）。将铁铂板与钴铬板对接，并用钕:钇铝石榴石激光进行激光焊接。还制备了对照和均匀焊接的试样。在有和没有氩气保护的情况下进行激光焊接。进行拉伸试验，并记录断裂力（Ff：牛顿）和伸长率（El：%）。对于焊接的铁铂/钴铬，有氩气保护和没有氩气保护的试样之间的Ff值没有差异。焊接试样的较低Ff值按铁铂合金＜铁铂/钴铬＜钴铬合金的顺序获得。结果表明，焊接到钴铬上的铁铂的Ff值介于均匀焊接的铁铂合金和钴铬合金的值之间。另一方面，氩气保护对铁铂和钴铬合金之间的焊接强度没有影响。
