发明名称 |
Processing of sliding surface of iron workpiece to hone cylinder barrels of internal combustion engine by short pulse-laser irradiation for plasma formation, comprises irradiating the sliding surface with the radiation of solid body laser |
摘要 |
<p>The procedure for processing of sliding surface (1) of gray iron workpiece to hone cylinder barrels of internal combustion engine by a short pulse-laser irradiation for plasma formation, comprises irradiating the sliding surface with the radiation of solid body laser with a pulse duration (tau ) of 50-150 ns, energy density of 20-100 mJ/mm 2> and pulse frequency (f p) of 4-15 kHz. The energy density lies in a pulse duration of 50 ns between 30-33 mJ/mm 2> and 100 ns between 40-70 mJ/mm 2>. The procedure for processing of sliding surface (1) of gray iron workpiece to hone cylinder barrels of internal combustion engine by a short pulse-laser irradiation for plasma formation, comprises irradiating the sliding surface with the radiation of solid body laser with a pulse duration (tau ) of 50-150 ns, energy density of 20-100 mJ/mm 2> and pulse frequency (f p) of 4-15 kHz. The energy density lies in a pulse duration of 50 ns between 30-33 mJ/mm 2> and 100 ns between 40-70 mJ/mm 2>. The laser irradiation is carried out with a neodymium yttrium aluminum garnet laser with a wave length of 1064 nm. The sliding surface is melted in the laser irradiation up to a deep melting in a dimension of 3 mu m and is irradiated in a multiple irradiation by partially overlapping the emerging irradiation spots (3, 4). The offset (a) lies between 3/8 to 5/8 of the irradiation spot radius (d/2) in the solid body laser emerging circular round irradiation spots. The irradiation spot yielding itself in the laser irradiation has a diameter of 1-2 mm. An independent claim is included for a laser irradiating device for processing of sliding surface of gray iron workpiece to hone cylinder barrels of internal combustion engine.</p> |
申请公布号 |
DE102006057940(A1) |
申请公布日期 |
2008.06.19 |
申请号 |
DE20061057940 |
申请日期 |
2006.12.08 |
申请人 |
ARGES GESELLSCHAFT FUER INDUSTRIEPLANUNG UND LASERTECHNIK M.B.H.;AUDI AG |
发明人 |
LINDNER, HORST;KOCH, JUERGEN;QUEITSCH, ROBERT |
分类号 |
B23K26/00;C21D1/09 |
主分类号 |
B23K26/00 |
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