Resin component and manufacturing method thereof
View Patent ↗A manufacturing method of a resin component includes: providing a first resin member containing a polymer and a second resin member containing a polymer; and joining a first joining portion of the first resin member and a second joining portion of the second resin member to each other. The joining of the first resin member and the second resin member to each other includes irradiating the first joining portion of the first resin member with a laser light having a peak wavelength in a range from 350 nm to 420 nm is emitted in a presence of oxygen so as to cause multiphoton excitation of the first joining portion of the first resin member.
1 . A manufacturing method of a resin component, comprising:
providing a first resin member containing a first fluorine-based polymer and a second resin member containing a second fluorine-based polymer; and
joining the first resin member and the second resin member to each other at a first joining portion of the first resin member and a second joining portion of the second resin member by irradiating the first joining portion of the first resin member with a laser light having a peak wavelength in a range from 350 nm to 420 nm in a presence of oxygen so as to cause multiphoton excitation of the first joining portion of the first resin member.
2 . The manufacturing method of a resin component according to claim 1 , wherein
the joining of the first resin member and the second resin member to each other includes irradiating the second joining portion of the second resin member with the laser light so as to cause multiphoton excitation of the second joining portion of the second resin member.
3 . The manufacturing method of a resin component according to claim 1 , wherein
the joining of the first resin member and the second resin member to each other includes
irradiating the first joining portion of the first resin member with the laser light in a state in which the first joining portion of the first resin member is spaced apart from and the second joining portion of the second resin member, and
subsequently, bringing the first joining portion of the first resin member and the second joining portion of the second resin member into contact with each other.
4 . The manufacturing method of a resin component according to claim 3 , wherein
a beam diameter of the laser light on a surface of the first joining portion of the first resin member is in a range from 200 μm to 500 μm.
5 . The manufacturing method of a resin component according to claim 1 , wherein
the joining of the first resin member and the second resin member to each other includes
bringing the first joining portion and the second joining portion into contact with each other, and
subsequently, irradiating an interface between the first joining portion of the first resin member and the second joining portion of the second resin member with the laser light.
6 . The manufacturing method of a resin component according to claim 5 , wherein
a beam diameter of the laser light on the interface between the first joining portion of the first resin member and the second joining portion of the second resin member is in a range from 200 μm to 500 μm.
7 . The manufacturing method of a resin component according to claim 1 , wherein
the laser light includes a laser light having a peak wavelength in a range from 350 nm to less than 390 nm and having a power density of 0.45 kW/cm 2 or more on a surface of the first joining portion of the first resin member.
8 . The manufacturing method of a resin component according to claim 1 , wherein
the laser light includes a laser light having a peak wavelength in a range from 390 nm to 420 nm and having a power density of 1.64 kW/cm 2 or more on a surface of the first joining portion of the first resin member.
9 . The manufacturing method of a resin component according to claim 1 , wherein
the laser light includes
a laser light having a peak wavelength in a range from 350 nm to less than 390 nm and having a power density of 0.45 kW/cm 2 or more on a surface of the first joining portion of the first resin member; and
a ninth laser light having a peak wavelength in a range from 390 nm to 420 nm and having a power density of 1.69 kW/cm 2 or more on the surface of the first joining portion of the first resin member.
10 . The manufacturing method of a resin component according to claim 9 , wherein
the joining of the first resin member and the second resin member to each other includes irradiating the first joining portion of the first resin member with the laser light having a peak wavelength in a range from 350 nm to less than 390 nm and having a power density of 0.45 kW/cm 2 or more and irradiation with the laser light having a peak wavelength in a range from 390 nm to 420 nm and having a power density of 1.69 kW/cm 2 or more, simultaneously.
11 . The manufacturing method of a resin component according to claim 7 , wherein
the joining of the first resin member and the second resin member to each other includes further irradiating the first joining portion of the first resin member with a tenth laser light having a peak wavelength in a range from more than 420 nm to 460 nm.
12 . The manufacturing method of a resin component according to claim 1 , wherein
the laser light is a continuous-wave laser light.