阅读说明：本技术 车辆的面板及其制造方法 (Panel of vehicle and manufacturing method thereof ) 是由 福士芳记 藤井宽二 于 2017-06-02 设计创作，主要内容包括：本发明提供一种设置于车身的面板,其包括：通过冲压成型而形成的金属制的加强内面板(5)；以及通过加厚处理针对加强内面板(5)局部进行加厚的加厚部(8)。加强内面板(5)包括第1面(5A)、第2面(5B)、及连接第1面(5A)与第2面(5B)的棱线(7),加厚部(8)设置于棱线(7)。(The present invention provides a panel provided to a vehicle body, including: a metal reinforcing inner panel (5) formed by press molding; and a thickened portion (8) which is locally thickened with respect to the reinforcing inner panel (5) by a thickening process. The reinforced inner panel (5) comprises a 1 st surface (5A), a 2 nd surface (5B) and a ridge (7) for connecting the 1 st surface (5A) and the 2 nd surface (5B), and the thickened part (8) is arranged on the ridge (7).)

1. A panel for a vehicle, which is a panel provided to a vehicle body, characterized by comprising:

a metal body portion formed by press molding; and

and a thickened portion which is locally thickened with respect to the main body portion by a thickening process.

2. The vehicle panel according to claim 1,

the main body portion includes a 1 st surface, a 2 nd surface extending in a direction intersecting the 1 st surface, and a ridge connecting the 1 st surface and the 2 nd surface,

the thickened portion is arranged on the ridge line.

3. The vehicle panel according to claim 2,

the panel is a panel forming at least a part of an opening of a vehicle body,

the opening part comprises a 1 st side and a 2 nd side extending along the direction crossed with the 1 st side,

the ridge is continuously formed from the 1 st edge to the 2 nd edge,

the thickened portion is also formed continuously from the 1 st edge to the 2 nd edge.

4. The panel for a vehicle according to any one of claims 1 to 3,

the main body portion includes a 1 st surface and a 2 nd surface extending in a direction intersecting the 1 st surface,

the thickened portion has a rib shape formed in the range of the 1 st surface and the 2 nd surface.

5. The panel for a vehicle according to any one of claims 1 to 4,

the panel is an inner panel disposed inside an outer panel forming an outer surface of the vehicle body.

6. A method for manufacturing a panel provided on a vehicle body, the method comprising:

a press-forming step of forming a metallic main body by press-forming; and

and a thickening step of locally thickening the body portion by thickening.

7. The method of manufacturing a panel for a vehicle according to claim 6,

in the press-molding step, the main body is press-molded so as to include a 1 st surface, a 2 nd surface extending in a direction intersecting the 1 st surface, and a ridge line connecting the 1 st surface and the 2 nd surface,

in the thickening process, the ridge is thickened.

Technical Field

The present invention relates to a panel for a vehicle and a method of manufacturing the same.

Background

As a technique for reinforcing a body panel of an automobile, the one described in patent document 1 can be cited. Patent document 1 describes the following technique: in the vehicle body side outer panel, a door hinge reinforcing member is provided at a corner portion where a front pillar portion of the opening portion intersects with the side sill portion. The door hinge reinforcing member is formed of a plate-like panel member, and is attached by spot welding to a door hinge panel attached to an inner surface of the vehicle body side outer panel.

Disclosure of Invention

Problems to be solved by the invention

In the technique of patent document 1, in order to obtain a predetermined reinforcement function, a reinforcement panel having a certain size or thickness is required, and there is a problem that the weight of the vehicle body is easily increased.

The present invention has been made to solve the above-described problems, and an object thereof is to provide a vehicle panel and a method of manufacturing the same, which can obtain a desired reinforcing function while suppressing an increase in weight.

Means for solving the problems

In order to solve the above problem, the present invention provides a panel provided on a vehicle body, the panel including: a metal body portion formed by press molding; and a thickened portion which is locally thickened with respect to the main body portion by a thickening process.

Effects of the invention

According to the present invention, the thickness can be easily increased only at the portion to be reinforced by thickening, and the increase in weight can be suppressed as compared with a structure in which another press-formed panel is reinforced by overlapping.

Drawings

Fig. 1 is a side view of a side panel.

Fig. 2 is a sectional view II-II in fig. 1.

Fig. 3 is a perspective view of the periphery of a corner of the front pillar and the side sill as viewed from the vehicle interior side.

Fig. 4 is a sectional view of a thickened portion.

Fig. 5 is a sectional view of a rib thickening portion.

Detailed Description

The present invention is applied to a side panel constituting a side portion of a vehicle body. The side panel 1 includes an inner panel 2 shown in fig. 1 and an outer panel 3 provided on the vehicle exterior side of the inner panel 2 as shown in fig. 2. The inner panel 2 and the outer panel 3 are each formed of a metal plate material formed by press molding. Note that the outer panel 3 is omitted from fig. 1 for convenience.

In fig. 1, the inner panel 2 includes: a front pillar inner 21 extending longitudinally on the front side; a center pillar inner 22 extending longitudinally on a center side; a rear pillar inner 23 extending longitudinally on the rear side; an inner roof side rail member 24 extending laterally at an upper side thereof; and a side sill inner 25 extending laterally at a lower side thereof. An outer panel 3 is joined to the vehicle outer side of each of the inner members 21 to 25 so as to substantially follow the contour shape of the inner panel 2 when viewed from the side. Thereby, the side panel 1 is formed with: a front pillar 11 constituting a longitudinal frame on the front side; a center pillar 12 constituting a longitudinal frame on the center side; a rear pillar 13 constituting a longitudinal frame on the rear side; a roof side rail 14 constituting an upper side lateral frame; and side sills 15 constituting a lower side lateral frame.

A front opening portion 16 for a front door is formed by the front pillar 11, the center pillar 12, the front portion of the roof side rail 14, and the front portion of the side sill 15. A rear opening portion 17 for a rear door is formed by the center pillar 12, the rear pillar 13, the rear portion of the roof side rail 14, and the rear portion of the side sill 15.

As shown in fig. 2, the inner panel 2 is configured to include a side inner panel 4 and a reinforcing inner panel 5. Fig. 2 shows a cross-sectional portion of the front pillar inner 21, and the inner panel 2 is also configured to include the side panel inner 4 and the reinforcing inner panel 5 in the other center pillar inner 22, rear pillar inner 23, roof side rail inner 24, and side sill inner 25.

In fig. 2, the side panel inner 4 is formed substantially in the vehicle longitudinal direction, and a flange 4A is formed at a front edge that is an outer edge with respect to the front opening portion 16, and a flange 4B is formed at a rear edge that is an inner edge with respect to the front opening portion 16. The reinforcing inner panel 5 is disposed on the vehicle exterior side of the side panel inner 4. The reinforcing inner panel 5 is shaped to include: a 1 st surface 5A formed in the vehicle front-rear direction at a distance from the side panel inner 4 to the vehicle exterior side; a 2 nd surface 5B extending inward in the vehicle width direction from a front edge of the 1 st surface 5A so as to intersect with the 1 st surface 5A; a 3 rd surface 5C extending inward in the vehicle width direction from a rear edge of the 1 st surface 5A so as to intersect with the 1 st surface 5A; a flange 5D extending forward from the vehicle interior end of the 2 nd surface 5B and in surface contact with the flange 4A; and a flange 5E extending rearward from the vehicle interior end of the 3 rd surface 5C and in surface contact with the flange 4B.

The outer panel 3 has a shape substantially following the reinforcing inner panel 5, and includes: a side surface 3A formed substantially along the 1 st surface 5A; a front face 3B formed substantially along the 2 nd face 5B; a rear face 3C formed substantially along the 3 rd face 5C; a flange 3D extending forward from the vehicle interior end of the front face 3B and in surface contact with the flange 5D; and a flange 3E extending rearward from the vehicle interior end of the rear face 3C and in surface contact with the flange 5E. The inner side panel 4, the reinforcing inner panel 5, and the outer panel 3 are joined by spot welding with the flanges 4A, 5D, and 3D overlapping each other, and the flanges 4B, 5E, and 3E overlapping each other. A closed-section space 6 is formed between the side panel inner 4 and the reinforcing inner panel 5. The closed cross-sectional space 6 is formed in the center pillar inner 22, the rear pillar inner 23, the roof side rail inner 24, and the side sill inner 25, although the shape varies.

Fig. 3 is a perspective view of the reinforced inner panel 5 viewed from the vehicle interior side at the corner portion of the front lower portion, that is, the reinforced inner panel 5 at the corner portion of the front pillar inner 21 and the side sill inner 25, in which the front pillar inner 21 extends in the vertical direction to form the 1 st side of the front opening portion 16, and the side sill inner 25 extends in the front-rear direction to form the 2 nd side of the front opening portion 16 so as to intersect with the front pillar inner 21. In fig. 3, the 3 rd face 5C shown in fig. 2 is omitted for convenience.

In fig. 3, the 1 st surface 5A and the 2 nd surface 5B are continuously formed at the corner portions from the front pillar inner 21 to the side sill inner 25, respectively. Therefore, the ridge line (angular line) 7 connecting the 1 st surface 5A and the 2 nd surface 5B is also continuously formed from the front pillar inner 21 to the side sill inner 25. A metal thickening portion 8 that is locally thickened by thickening is provided on the vehicle interior side (inner corner side) of the ridge line 7.

The thickening treatment may be performed by a metal thermal spraying method, a cold spraying method, or the like, in addition to the metal 3D printing method. As the metal 3D printing method, for example, a powder metal lamination method of manufacturing a shaped object by irradiating a laser beam to laid metal powder and sintering the metal powder, a molten metal lamination method of manufacturing a shaped object by forming a droplet of the metal beam by arc discharge or the like, a powder metal lamination welding method of laminating and welding powder metals, and the like can be used.

The thickened portion 8 is continuously formed from the front pillar inner 21 to the side sill inner 25. That is, at the ridge line 7, the thickened portion 8 is continuously formed in the curved range 7A, the partial linear range 7B which is continuous with one end of the curved range 7A and is formed in the front pillar inner 21, and the partial linear range 7C which is continuous with the other end of the curved range 7A and is formed in the side sill inner 25.

As shown in fig. 4, the thickened portion 8 has a substantially triangular cross-sectional shape with the 1 st surface 5A and the 2 nd surface 5B on both sides, for example, so as to bury the vehicle interior side of the ridge line 7. In addition, in the present embodiment, rib thickened portions 9 having a rib shape formed in the range of the 1 st surface 5A and the 2 nd surface 5B are provided in addition to the thickened portions 8 as shown in fig. 5. The rib thickened portion 9 has a substantially triangular cross-sectional shape with the 1 st surface 5A and the 2 nd surface 5B as both sides and a cross-section larger than that of the thickened portion 8. The rib thickened portions 9 are formed in thin plate shapes along orthogonal surfaces orthogonal to the 1 st surface 5A and the 2 nd surface 5B, and a plurality of rib thickened portions are formed at intervals in the extending direction of the ridge line 7 in the curved range 7A and the partial straight ranges 7B and 7C.

As described above, the panel provided in the vehicle body includes the inner panel 2 as the metal main body portion formed by press molding and the thickened portion 8 in which the inner panel 2 is locally thickened by thickening treatment, and with this configuration, the thickness can be easily increased only at the portion that needs to be reinforced by thickening treatment, and the weight increase can be suppressed as compared with a structure in which another panel by overlap press molding is reinforced. Since the inner panel 2 is thickened after press forming, the press forming formability of the inner panel 2 can be prevented from being impaired.

The inner panel 2 as the main body portion has a 1 st surface 5A, a 2 nd surface 5B extending in a direction intersecting the 1 st surface 5A, and a ridge line 7 connecting the 1 st surface 5A and the 2 nd surface 5B, and the ridge line 7 is provided with a thickened portion 8. The inner panel 2 formed by press molding can stably maintain the shape rigidity while the ridge line 7 maintains the shape (for example, the intersection angle between the 1 st surface 5A and the 2 nd surface 5B sandwiching the ridge line 7) when an external force is applied, but when a larger external force is applied and the shape of the ridge line 7 is collapsed, the inner panel 2 easily starts to deform. In contrast, the deformation of the inner panel 2 can be suppressed by thickening the ridge 7 to suppress the collapse of the ridge 7.

The panel is an inner panel 2 forming at least a part of a front opening portion 16 of a vehicle body, the front opening portion 16 includes a 1 st side front pillar inner 21 and a 2 nd side sill inner 25 extending in a direction intersecting the front pillar inner 21, a ridge line 7 is continuously formed from the front pillar inner 21 to the side sill inner 25, and a thickened portion 8 is also continuously formed from the front pillar inner 21 to the side sill inner 25, and with this configuration, it is possible to effectively reinforce a corner portion of the front opening portion 16 where a load or the like is concentrated during vehicle traveling.

The inner panel 2 as the main body portion includes the 1 st surface 5A and the 2 nd surface 5B extending in the direction intersecting the 1 st surface 5A, and has the rib-shaped rib thickened portion 9 formed in the range of the 1 st surface 5A and the 2 nd surface 5B, and with this configuration, deformation in which the intersection angle between the 1 st surface 5A and the 2 nd surface 5B of the opening becomes large or toppling deformation in which the intersection angle becomes small can be more effectively suppressed.

The outer surface of the vehicle body is formed by the outer panel 3, and the panel provided with the thickened portion 8 or the rib thickened portion 9 is the inner panel 2 disposed inside the outer panel 3. When the thickening treatment is performed, there is a possibility that the press-formed metal panel may be slightly distorted, and the inner panel 2 disposed inside the outer panel 3 may be thickened, thereby preventing the appearance of the outer panel 3 as a decorative surface from being deteriorated.

The method for manufacturing the panel arranged on the vehicle body comprises the following steps: a press-forming step of forming the inner panel 2 as a metal body by press-forming; and a thickening step of locally thickening the inner panel 2 by a thickening treatment, and with the method of manufacturing a panel for a vehicle, it is possible to easily increase the thickness of only a portion to be reinforced by the thickening treatment, and it is possible to suppress an increase in weight as compared with a structure in which another panel is reinforced by overlap press molding. Since the inner panel 2 is thickened after press forming, the press forming formability of the inner panel 2 can be prevented from being impaired.

In the press forming step, the inner panel 2 is press formed so as to include the 1 st surface 5A, the 2 nd surface 5B extending in the direction intersecting the 1 st surface 5A, and the ridge line 7 connecting the 1 st surface 5A and the 2 nd surface 5B, and the ridge line 7 is thickened in the thickening step. The inner panel 2 formed by press forming can stably maintain the shape rigidity while the ridge line 7 maintains the shape (for example, the intersection angle between the 1 st surface 5A and the 2 nd surface 5B sandwiching the ridge line 7) when an external force is applied, but when a larger external force is applied and the shape of the ridge line 7 is collapsed, the inner panel 2 easily starts to deform. In contrast, the deformation of the inner panel 2 can be suppressed by thickening the ridge 7 to suppress collapse of the ridge 7.

The preferred embodiments of the present invention have been described above. The thickening of the corner portion of the opening is not limited to the corner portions of the front pillar 11 and the side sill 15. For example, the front opening portion 16 may be provided with a thickened portion 8 at a corner portion between the center pillar 12 and the roof side rail 14 or a corner portion between the center pillar 12 and the side sill 15. The rear opening 17 may be provided with thickened portions 8 at the corner portions of the center pillar 12 and the roof side rail 14, the corner portions of the center pillar 12 and the side sill 15, and the corner portions of the roof side rail 14 and the rear pillar 13.

Further, only one of the thickened portion 8 and the rib thickened portion 9 may be provided. In addition, the outer panel 3 may be thickened as appropriate.

Description of the reference numerals

1 side panel

2 inner panel

3 outer panel

4 side panel inner parts

5 reinforced inner panel

5A No. 1

5B No. 2

6 space of closed cross section

7 edge line

8 thickened part

9 Rib thickening

11 front pillar

12 center pillar

13 rear pillar

14 roof side rail

15 side sill

16 front opening part

17 rear opening part