WELDING METHOD AND A WELDING APPARATUS FOR A RESIN MEMBER THAT HAS TRANSPARENCY ABOUT A LASER BEAM

22-05-2009 дата публикации
Номер:
KR1020090051680A
Принадлежит:
Контакты:
Номер заявки: 00-08-102026709
Дата заявки: 24-03-2008

[1]

The present invention refers to, with respect to the laser beam to and resin-permeable base and, with respect to the laser beam to fabric with resin materials, is joined to the under using laser beam welds relates to device and welding method.

[2]

Predetermined wavelength of with respect to the laser beam to and resin-permeable base and, of wavelengths such as fabric with with respect to the laser beam to each other and resin material, laser beam permeable resin material side by irradiating a laser beam the of water purifying system welding both, patent document 1 or the like. is well known as seen.

[3]

The present for the height of the described simple principle. A laser beam into a molten resin in permeable laser beam is generally non-radiation absorbing elements and pass, properties of the resin absorbent laser beam is absorbent in the vicinity. The energy of the laser light absorbent is converted into a heat, laser beam absorbent of. heating the surfaces resin. Surface of resin absorbent laser beam of a laser beam transmitting member also in vicinity of a surface part of resin, is heating by heat transfer from the arc gas. As a result, laser beam permeable resin and contact surfaces resin of absorbent laser beam melt layer is formed, before reaching the welding. In welding, laser beam permeable resin of absorbent laser beam and for ensuring the adhesion resin, , apply the loads direction video Image display means overlapped, welding to be pressed in. of doing research of. To this end, such that portions of the layer of melt is to the exclusion into the exterior, welding of the access is imaginarily telegram welds member.

[4]

Patent document 1: Japanese [...] 2002-337236 call Official Gazette

[5]

In laser beam welding method of the existing method, laser beam is projected onto the predetermined amount time from misalignment in the distance access resin exists in a, welded body as their dimensional accuracy constitution: causative which damage. The difference a various factors but generated, or incompletely of power and a method of controlling laser beam, as an example, in wrapping, laser beam transmitting resin transmittance of entity of the communication system, i.e. as to the aromatic hydrocarbon (individual) deviation. The, if method proposed to patent document 1, reaches a predetermined access distance and ending an welding in because the method management, access distance variation is reduced.

[6]

However, has reached a predetermined access distance, and welding and then detecting control up to cease even during of time delays on the ongoing access. Since the chainic distance access while, by which the residual the deviation of distance access.

[7]

An optional secure a mis-welded body, amount of resin material other than weld volume during welding portions bolted function. is positioned a. Two resin material the abutting position predetermined positioning accuracy the designed to expression, in welding in the elimination of the effects of deviation of distance access can be. In this case, certainly, two resin material even for a time in which fogging against. chainic individually. All individual order engagement is reliably set, laser light radiation range deviation time set to be longer than that set, it is necessary that. To this end, is tumbled for cells of the individual and having short time until, a contact portion which is over-irradiation time laser beam then, a joining strength between a weld volume component is. The following from being lowered in strength pin. as being caused by a particular fault. Two resin material is tumbled until, weld volume pressurized is formed on, the outside sequential molten resins is to the exclusion, melt't work heated excess layer. After the abutting however, as a result-loaded the addition being in contact , weld volume pressing force is can be applied to a raising apparatus. As a result, . is stationary to the exclusion layer melt. Continue laser light radiation more in this state such that the gaseous support medium rises layer of melting when, void occurs of pinholes is composed of a, is lowering joining strength at the joint.

[8]

The present invention refers to, the IDF it is, a mis-component welded panel structure forms the strength periphery optical resin to provide a welding method and welding device, intended for.

[9]

The present invention refers to, is transmissive with respect to the laser beam to a resin and, with respect to the laser beam to absorbent resin materials overlapping with, said laser beam permeable resin material a laser beam is projected onto the side method for welding re-among ourselves in said resin, said in said engaged in laser irradiation amount resin based on the possible access, said prior to the terminating laser irradiation.

[10]

Furthermore, the present invention refers to, is transmissive with respect to the laser beam to a resin and, with respect to the laser beam to absorbent resin materials overlapping with, said laser beam permeable resin material a laser beam is projected onto the side resin of said resin re-among ourselves welding in welding device, said laser irradiation during one resin material or a support the jig other resin material measuring the velocity of the speed measurement and, said speed measuring output the divided, arranged access resin amount said it is judged, to terminate the laser irradiation said equipped with controller..

[11]

According to method welding resin of the present invention, welding amount of resin layer, a part of the their dimensional accuracy, in addition excess a laser light irradiation of sticking and reduction in strength inside of the container to be divided.

[12]

Furthermore, according to device welding resin of the present invention, welding amount of resin layer, a part of the their dimensional accuracy, in addition excess a laser light irradiation of sticking a first protective can be embodiment of weld deposit method.

[13]

(Form of embodiment 1)

[14]

Also, as shown in 1 2 of resin materials compressed by hermetic method of fabricating containers disclosed, for example, ..

[15]

Resin material (1) used for the weld deposit has permeable base and with respect to the laser beam to a cover is made of a resin. As an example of material, polybutylene terephthalate (PBT), polyethylene terephthalate (Peru Time), polyphenylene sulfide (PPS), polyether-ether-ketone (PEEK), polycarbonate (PC), polyamide (Pa), polyethylene (PE) as to the aromatic hydrocarbon. Or not containing any dye or pigment, porous to an the laser beam does not detract from the in a range in which the output constitution: colored dye or pigment.

[16]

Resin material (2) weld deposit has used absorbent relative to a wavelength of a laser beam for performing is a case having a. Also come treated with a water-entangling material, permeable resin and is similarly treated but, permeable of a resin material having router or of a material having low transmittance than, including carbon black height absorbability of mixing pigment or a dye for use.

[17]

Their resin material each method extrusion molding or injection molding, blow molding process comprises, thermoforming is bent variety of resin-forming then, metal whose parts and is made of a different resin components or the like, are insert-molded when. Welding relates to only a place where the laser light having said absorbent laser beam resin and-permeable base and if combination of a resin with a preferably.

[18]

Also Figure 2 shows a, 1 of the present invention embodiment in form of welding resin. surface thereof, and the shown configuration of device.

[19]

A device is fusion, laser light radiation device (3) and a, resin material (1) and resin material (2) each carrying a a support jig (4, 5) and a, through a state that a bending load is subject to thermal stress by pressurized applying device (not shown) and a, resin material (1) and resin material (2) access measuring the velocity of the speed measurement part (6) and a, speed measuring section (6) on the basis of the measurement value of the end of laser light radiation and determine the timing and, laser light radiation device (3) to a control unit command is given end laser light radiation (7) has a.

[20]

Resin material (2) a support jig (5) a fixed-orthogonal to, resin material (1) a support jig (4) a resin material (1) by following up the to a top direction and a is the moveable (mobility).

[21]

Speed measuring section (6) for example an resin material (1) and resin material (2), resin material (1) and a support jig (5), support jig (4) and resin material (2), or support jig (4) and a support jig (5) a displacement sensor detects the shifting amount of relative (61) and a, displacement amount measured in, at predetermined time intervals and resin from the solvent solution, material (1) and resin material (2), resin material (1) and a support jig (5), support jig (4) and resin material (2), or support jig (4) and a support jig (5) access speed of processing of the speed calculating part calculates (62) 17 forms.

[22]

Control unit (7) the, speed measuring section (6) comprises an input access measured at input at a rate that is (71) and a, set by the determination condition storage unit (72) are maintained in a determination conditions set by the determines timing to end the laser irradiation based, including spectrum based endpointing judging section (73) and a, laser irradiation device (3), including spectrum based endpointing outputs end signal irradiated signal output (74) 17 forms. End judging section (73) external storage device a control period in the predetermined time intervals conducted by holding data.

[23]

Figure 3 shows a also, welding method of the present invention embodiment 1 in form of welding at each stage of a cross section is shown state. Figure 4 shows a also, resin material amount from start laser light radiation (1, 2) of the variation of time-an example of access speed of it is shown a. surface thereof, and the.

[24]

Also at the stage number 1, as shown in 3 (a), resin material (1) and resin material (2) each other and, load is applied. Step in, load being predominantly in a weld volume (8) to. applied to.

[25]

Also at the stage number 2, as shown in 3 (b), resin material (1) to transmit wadding in weld volume (8) laser beam at a (9) 27 is equal to that of. Laser beam (9) irradiation of the first substrate are assembled but not designating, for the Multicast communication method, for example, a laser beam focuses the light spot shape weld volumes (8) the final scanning a scheme is or, optical element or weld volumes using masks and the like-shaped in the region extending (8) according to a laser beam irradiating batch respect to the joint can be mentionned type the.

[26]

Device (3) laser light radiation elements in the graph and laser light source but not designating, for the Multicast communication in particular, many respect to he-permeable base and or diode laser having a wavelength of near infrared, and items YAG laser is, the room to guide the laser C02 may be selected.

[27]

Laser beam (9) simultaneously beginning and irradiation of, speed measuring section (6) by, amount resin material (1, 2) initiates a measurement of a rate of access. Layer by laser beam irradiation when the distance and then initiates a weld volumes (8) to melted layer and (10) is formed, then melted layer and (10) a portion of extruded into external weld volume by 200, resin material (1) and resin material (2) to the access a. Melted layer and (10) is formed substantially until access is not performed since the access speed is on the floor and immediately after layer by laser beam irradiation small but, after the layer formed on surface of exterior material melt once, since the is extruded sequentially, exhibits and speed access substantially constant. Also, as shown in 4 are as.

[28]

Also at the stage number 3, as shown in 3 (c), amount resin material (1, 2) abutting a in addition to weld volume is (11) a contact portion, the accompanying as shown in 4 also the access speed is decrease rapid. Control unit (7) on detecting the possible accessed in, laser light radiation device (3) to that command the end of laser light radiation, laser light radiation is, including spectrum based endpointing. Access speed control for detecting a rapid drop in a determining manner on the first substrate are assembled but not designating, for the Multicast communication, access speed to be below a a predetermined threshold for determining the scheme is most simple..

[29]

Above, resin in re-among ourselves when have been provided, on the abutting part but the invention relates to an internal combustion, abutting portion (11) door has resin material as shown in 5 (1) and a support jig (5), and between the, also as shown in 6, support jig (4) and a support jig (5) or may be provided at an between the preferably. Commonsense to but support jig (4) and resin material (2) between the. Preferably even when it is disposed. The first pixel and the second pixel, then a contact portion of excess a laser light irradiation preventing part is, excess molten layer and reduction in strength of sticking temperature rise inside of the container to be divided.

[30]

Figure 7 shows a also, form of embodiment of control 1 sequences of for treating method for flow chart is in examples. First, resin material amount (1, 2) of convergence between when the bypassing switching speed, number 1 of an individual without regard to the speed of passing through the necessarily (V1) sets the number 1 as a threshold value of a, speed of in addition number 1 (V1) at least, of an individual without regard to the speed of number 2 passing through the necessarily (V2) offer is firm subject as a threshold value of number 2 a.

[31]

A starting laser light radiation, first access speed (V) and a number 2 threshold (V2) defined by clock control decided determined time intervals. Set by the determination condition (V > V2) after is satisfied and as, access speed (V) and a number 1 threshold (V1) defined by clock control decided determined time intervals. Set by the determination condition (V≤V1) at the point of is satisfied and as, access speed (V) and is judged as a rapid drop in a of, .and terminates the laser light radiation.

[32]

Furthermore, set by the determination condition (V > V2) determination of, the determination condition is satisfied when knowledge in advance of time to elapse after start laser light radiation when a, .may be substitute them to.

[33]

(Form of embodiment 2)

[34]

Figure 8 shows a form of embodiment 2 also of control method in examples sequence of for treating is for flow chart. In form of embodiment 2, set by the determination condition (V≤V1) is satisfied and as at the point of, and a decision is made whether the access speed (V) and then lowering of, more predetermined time after continuously laser light radiation, laser light radiation is ended.

[35]

Time-time, continuous laser light radiation is, weld volume (8) void or of pinholes player the shorter than a time domain of a range from. The first pixel and the second pixel, than stopping the pulling operation in laser light radiation, melted layer and (10) since the thickness of are opened upward and downward, a more firm junction can cause.

[36]

(Form of embodiment 3)

[37]

Also 9 and 10 form of embodiment of the method of control 3 in another example of a an order of processing is, which illustrates the flow chart. In form of embodiment 3, 1 form of embodiment number 2 in more stages of a during the fabrication weld volume (8) is irradiated into by lowering disk apparatus has a plurality of laser, number 3 speed of reducing disk apparatus has a plurality of laser (V3) a sets the as a threshold value of number 3.

[38]

Figure 9 shows a also, set by the determination condition (V > V2) after is satisfied and as, access speed (V) and a number 3 threshold (V3) defined by clock control decided of the software is determined time intervals, set by the determination condition (V > V3) is satisfied and as at the point of, after lowering the disk apparatus has a plurality of laser, number 1 threshold (V1) a determination is made by lock is formed inside the tie..

[39]

The in Figure 10, number 3 threshold (V3) is number 2 threshold (V2) hereinafter, in this case, is shown to, originally access speed (V) and a number 3 threshold (V3) defined by clock controlling STW of a right-sided inclination of it is judged time intervals, set by the determination condition (V > V3) in one step to the disk apparatus has a plurality of laser satisfies disease and, number 2 threshold then (V2) and number 1 threshold (V1) in of the judgment by the is capable of.

[40]

Furthermore, the timing of the reducing power laser beam, resin material (1) resin material (2) allowed to abut on an access speed that suddenly transition than is located but can be optionally set if, after some time from the start of the laser irradiation, amount resin material (1, 2) after the predetermined amount, or quantity resin material (1, 2) access speed a certain length such as a one end after reaching the preferably.

[41]

Form of resin material according to embodiment 3 (1) resin material (2) of melted layer and then a contact portion (10) is a rise in temperature of one subfield among subfields constituting one field, at the stage number 3 access speed a rapid drop in a detected distance with a terminating laser irradiation then Tftlcd active to is enlarged with time.

[42]

As a result, control are facilitated is burnt , laser light radiation between the gas and the chamber to power low sound subsequently as compared when the welding time and to reduce contact point is turned off.

[43]

Furthermore, or more embodiment form welding object as hermetic container, but e.g., is not or is for this.

[44]

As welded body according to the present invention high dimension accuracy to be achieved since the, precision electronic parts storage case for finds suitable application in pattern as a mask.

[45]

Also of the present invention embodiment Figure 1 shows a form of an example to explain an perspective view, which illustrates the hermetic container.

[46]

Also Figure 2 shows a form of welding in of the present invention embodiment 1, which illustrates the configuration of device configured coarse.

[47]

Figure 3 shows a form of method 1 of the present invention embodiment also shown each stage of welding in a cross section.

[48]

1 of the present invention embodiment also Figure 4 shows a form of access speed due to a welding in an example of of the variation of time-described, which illustrates the.

[49]

Figure 5 shows a resin material also shown in another example of a method a blanks a cross section.

[50]

Figure 6 shows a resin material also is another example of an method a blanks shown a cross section.

[51]

Figure 7 shows a control 1 of the present invention embodiment also form of sequences of for treating method in examples for flow chart.

[52]

Figure 8 shows a method for treating of control 2 of the present invention embodiment also form of sequences of examples for in flow chart.

[53]

Also of the present invention embodiment 3 Figure 9 shows a form of control method in examples sequence of for treating for flow chart.

[54]

Figure 10 shows a form of control 3 of the present invention embodiment also in another example of a an order of processing of method for in a flow chart.



[1]

PURPOSE: A welding method and a welding apparatus for a resin member are provided to prevent the degradation of bonding strength caused by the irradiation of a laser beam by terminating the irradiation of the laser beam based on the approaching speeds of two resin materials.

[1]

CONSTITUTION: A welding method for a resin member welds resin members by irradiating a laser beam from resin material(1,2) having transparency about a laser beam. When irradiating the laser beam, the irradiation of the laser beam is terminated based on the approaching speeds of those two resin materials.

[1]

© KIPO 2009



A resin is transmissive with respect to the laser beam to and, with respect to the laser beam to absorbent resin materials overlapping with, said laser beam permeable resin material a laser beam is projected onto the side method for welding re-among ourselves in said resin,

Said in said engaged in laser irradiation amount resin based on the possible access, to terminate the laser irradiation said series of cells for the same selected welding method characterized by resin.

According to Claim 1,

Said amount said resin material each other during laser irradiation, or said each other regardless of the support an ear-resin amount, an ear-resin one or both support regardless of the shape of a square frame is installed another resin by arranged access resin amount said it is judged, to terminate the laser irradiation to said characterized by resin welding method.

According to Claim 1 or Claim 2,

After said access is arranged, after a predetermined time said ends irradiation of laser beam characterized by resin welding method.

According to Claim 1 or Claim 2,

Said laser irradiation a meters is to end the access before does not arranged, said disk apparatus has a plurality of laser welding resin characterized by deterioration due to bright and method.

A resin is transmissive with respect to the laser beam to and, with respect to the laser beam to absorbent resin materials overlapping with, said laser beam permeable resin material a laser beam is projected onto the side resin of said resin re-among ourselves welding in welding device,

Said laser irradiation during one resin material or a support the jig other resin material measuring the velocity of the speed measurement and,

Based measurement value of the speed measuring section, arranged access resin amount said it is judged, to terminate the laser irradiation said equipped with controller to device characterized by welding resin.

According to Claim 5,

Said control unit, said each other resin material amount during laser irradiation, an ear-resin or quantity each other regardless of the support, an ear-resin one or both support regardless of the shape of a square frame is installed another resin by arranged access resin amount said it is judged, to terminate the laser irradiation to said characterized by resin welding device.

According to Claim 5 or Claim 6,

After said access is arranged, after a predetermined time said ends irradiation of laser beam characterized by resin welding device.

According to Claim 5 or Claim 6,

Said control unit, said after some time from the start of the laser irradiation, said two resin material after the predetermined amount, or said amount is access resin after sensor said at either end of the disk apparatus has a plurality of laser welding resin characterized by deterioration due to bright and device.