To provide a laser beam welding method which is featured by high welding strength, reduced strength dispersion, and no burr occurrence when two members constituted of a thermoplastic resin material are welded together and a laser beam welding apparatus for the method.
The laser beam welding apparatus 1 which joins the contact surfaces 4 of a first member 2 constituted of a laser beam transmitting thermoplastic resin and a second member 3 constituted of a laser beam absorbing thermoplastic resin together by melting them by laser beams R is equipped with a casing 5 housing the first and second members, a vacuum pump 6 decompressing the casing, and a laser 10 melting at least one of the contact surfaces of the first and second members. The first member and the second member are brought into contact in a reduced pressure atmosphere, and the contact surfaces of the members are irradiated with the laser beams R from the side of the first laser beam transmitting member.
WATANABE TOSHIO
NAKAMURA HIDEO
MORI HIROSHI
FUJITA SUSUMU
NAKATANI MITSUNOBU
DU PONT
| JPH11170371A | 1999-06-29 | |||
| JP2005279955A | 2005-10-13 | |||
| JP2005246913A | 2005-09-15 | |||
| JP2003251699A | 2003-09-09 | |||
| JP2002283457A | 2002-10-03 |
Sekiya Mitsuo
Yasushi Hayakawa
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