TW201521901A - Method for manufacturing metallic plate and manufactured metallic plate - Google Patents

Abstract

The invention relates to a method for manufacturing metal plate and a manufactured metal plate. The method includes the following steps. Provide a metallic plate, and the metallic plate has a thickness. The metallic plate includes a first plate portion and a second plate portion connected to the first plate portion. Perform a first bending process and bend the metallic plate so that the first plate portion and the second portion form a first angle. Perform a perforating process and form a hole on the first plate portion or the second plate portion. The distance between the connected position of the first plate portion and the second plate portion as well as the hole is less than or equal to three times of the thickness. Perform a second bending process, and further bend the metallic plate so that the first plate portion and the second portion form a second angle, which is less than the first angle.

Description

Metal sheet processing method and metal sheet produced

The invention relates to a method for processing a metal plate and a metal plate member, and particularly a method and a method for processing a metal plate with a distance between the opening and the bending being less than or equal to three times the thickness of the metal plate. Made of sheet metal parts.

In the manufacturing process of the metal plate member, if the bending is performed near the opening, the metal plate member may be pulled, deformed, etc. because the distance between the opening and the bending of the metal plate member is too close. In general, when the distance between the opening and the bend is less than or equal to three times the thickness of the metal plate member, the deformation of the opening in the metal plate member is particularly remarkable. Therefore, generally, in the process of designing the metal plate, the distance between the opening and the bending is far as far as possible, so that the design value of the distance between the opening and the bending is greater than the thickness of the metal plate. However, this limits the design of the metal sheet. Therefore, how to design a processing method of the metal plate member to solve the problem that the opening of the metal plate member in the prior art is too close, which causes deformation of the opening of the metal plate member, becomes a designer. issues that need resolving.

In view of the above problems, the present invention relates to a method for processing a metal plate member and a fabricated metal plate member, thereby solving the distance between the opening and the bending of the metal plate member in the prior art. When it is too close, it will cause the deformation of the opening of the metal plate.

A method of processing a metal sheet member according to an embodiment of the invention comprises the following steps. A metal plate member is provided having a thickness. The metal plate member includes a first plate portion and a second plate portion that are connected. A first bending process is performed to form a first angle between the first plate portion and the second plate portion of the metal plate member. A punching process is performed to form an opening in the first panel portion or the second panel portion. The distance between the first plate portion and the second plate portion and the opening is less than or equal to three times the thickness. A second bending process is performed to continue bending the metal sheet member to form a second angle between the first panel portion and the second panel portion that is less than the first angle.

A metal plate member according to an embodiment of the present invention is produced by the method for processing a metal plate member disclosed in the present invention.

According to the processing method of the metal plate member and the metal plate member produced by the above embodiment of the present invention, the bending process is divided into two steps, and the two bending process is performed before and after the punching process, respectively. Therefore, after the first bending process is performed, the metal plate member has been deformed to a considerable extent, so that the metal plate member is less deformed or not deformed when the second bending process is performed. Since the opening of the metal plate member according to the embodiment of the present invention is formed after the first bending process, the amount of deformation generated by the opening hole is only affected by the second bending process, so that the amount of deformation caused by the opening is higher. Less or even no distortion. In this way, although the distance between the opening of the metal plate member and the pre-fold line of the embodiment of the present invention is less than or equal to three times the thickness of the metal plate member, the processing method of the metal plate member of the present invention can be effectively reduced. It is even possible to avoid the case where the bending process causes deformation of the opening of the metal plate member. Therefore, when the distance between the opening and the bending of the metal plate member in the prior art is too close, the problem of the opening deformation of the metal plate member is caused, and the design of the metal plate member is more flexible.

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention.

10‧‧‧Metal plates

11‧‧‧First Board Department

12‧‧‧Second Board Division

13‧‧‧Pre-fold line

14‧‧‧Opening

D‧‧‧Distance

F1‧‧‧First extension direction

F2‧‧‧ second extension direction

S‧‧‧ surface

T1‧‧‧ thickness

T2‧‧ depth

X‧‧‧ first angle

Y‧‧‧second angle

FIG. 1 is a flow chart of a method for processing a metal plate member according to an embodiment of the invention.

Fig. 2A is a schematic view of the metal plate member of the step S101 of Fig. 1.

Fig. 2B is a schematic view of the metal plate member of step S102 of Fig. 1.

Fig. 2C is a schematic view of the metal plate member of the step S103 of Fig. 1.

Fig. 2D is a schematic view of the metal plate member of step S104 of Fig. 1.

Fig. 2E is a schematic view of the metal plate member of the step S106 of Fig. 1.

Figure 3 is a side view of the metal sheet of Figure 2B.

The detailed features and advantages of the present invention are set forth in the detailed description of the embodiments of the present invention. The objects and advantages associated with the present invention can be readily understood by those skilled in the art. The following examples are intended to describe the present invention in further detail, but do not limit the scope of the invention in any way.

First, please refer to FIG. 1 and FIG. 2A to FIG. 2E. FIG. 1 is a flow chart of a method for processing a metal plate member according to an embodiment of the present invention, and FIG. 2A is a step S101 of FIG. Schematic diagram of the metal plate member, FIG. 2B is a schematic view of the metal plate member of the step S102 of FIG. 1, and FIG. 2C is a schematic view of the metal plate member of the step S103 of the first embodiment, FIG. 2D FIG. 2E is a schematic view of the metal plate member of step S104 of FIG. 1 , and FIG. 2E is a schematic view of the metal plate member of step S106 of FIG. 1 .

First, a metal plate member 10 is provided (step S101). The metal plate member 10 has a thickness T1, and the metal plate member 10 has the first plate member portion 11 and the second plate member portion 12 connected thereto. (as shown in Figure 2A). The metal plate member 10 can be made, for example, as an outer casing of an electronic device (such as a computer, a server, a mobile phone, etc.), but the field of application of the metal plate member 10 is not intended to limit the present invention.

Next, a pre-fold line 13 is formed on the metal sheet member 10 (step S102). In detail, a pre-fold line 13 is formed at the junction of the first panel portion 11 and the second panel portion 12 of the metal sheet member 10 (as shown in Fig. 2B). In the present embodiment, the pre-fold line 13 is embossed on the surface S of the metal plate member 10 through a die casting (not shown). However, the method of forming the pre-fold line 13 on the metal sheet member 10 is not intended to limit the present invention. In other embodiments, the pre-fold line 13 may also be formed on the sheet metal member 10 by, for example, laser cutting or knife cutting. It should be noted that the step of forming the pre-fold line 13 on the sheet metal member 10 is not intended to limit the invention. In some embodiments, the step of forming the pre-fold line 13 may be omitted, and is directly performed after (step S101) (step S103).

Then, a first bending process (step S103) is performed to bend the metal sheet member 10 along the pre-fold line 13, so that a first space is formed between the first panel portion 11 and the second panel portion 12. Angle X (as shown in Figure 2C). Since the pre-fold line 13 has been previously formed on the metal sheet member 10 before the first bending process is performed, the metal sheet member 10 is bent along the pre-fold line 13 during the bending process, so that the bending is performed. The process is smoother. It should be noted that, in the embodiment of the present invention, the first angle X is an angle representing the first extending direction F1 of the first panel portion 11 and the second extending direction F2 of the second panel portion 12, and the angle is A bad angle (less than 180 degrees).

Next, a punching process (step S104) is performed to form an opening 14 in the first panel portion 11 or the second panel portion 12 (as shown in Fig. 2D). In the following description, the opening 14 is formed in the first plate portion 11 as an example. It is worth mentioning that in the embodiment of the present invention, the opening 14 and the pre-fold line 13 have a distance D, and the distance D is less than or equal to three times the thickness T1 of the metal plate member 10.

Then, a burr processing program is executed (S105). In this embodiment and some other embodiments, the processing method further includes a flash processing program. In detail, the inner edge of the opening 14 of the metal plate member 10 is additionally subjected to deburring treatment so that the inner edge of the opening 14 is relatively smooth (not shown), so that the metal plate member 10 has a better condition. Processing quality. It should be noted that the method of processing the sheet metal part includes the steps of performing the burr processing procedure and is not intended to limit the invention. In some embodiments, the steps of performing the burr processing procedure may also be omitted.

Finally, a second bending process is performed (step S106) to continue bending the sheet metal member 10 along the pre-fold line 13, so that a first portion is formed between the first panel portion 11 and the second panel portion 12. Two angles Y. Wherein, the second angle Y is smaller than the first angle X (as shown in FIG. 2E). In detail, the second bending process is for bending the first panel portion 11 and the second panel portion 12 to be positioned (that is, between the first panel portion 11 and the second panel portion 12) The angle of the bend is bent to the second angle Y). Since the metal plate member 10 has been previously bent so that the first plate portion 11 and the second plate member portion 12 have a first angle X before the second bending process is performed, the metal plate member 10 has been produced to a considerable extent. The deformation. Therefore, when the second bending process is performed, the sheet metal member 10 is deformed by little or no deformation. Since the opening 14 is formed after the first bending process, the amount of deformation that the opening 14 will produce is only affected by the second bending process, so that the opening 14 is less deformed or not deformed. In this way, even the opening 14 of the metal plate member 10 and the pre-folding line 13 The distance is less than three times the thickness T1. However, the processing method of the metal plate member of the present invention can effectively reduce or even avoid the deformation of the opening 14 of the metal plate member 10 caused by the bending process. In addition, similar to the first angle X, in the embodiment of the present invention, the second angle Y is an angle representing the first extending direction F1 of the first panel portion 11 and the second extending direction F2 of the second panel portion 12, And this angle is a bad angle (less than 180 degrees).

In addition, in this embodiment and some other embodiments, the first angle is 100 degrees, and the second angle is 90 degrees, but is not limited thereto. In other embodiments, the first angle may be 105 degrees and the second angle is 90 degrees, or the first angle may be 105 degrees and the second angle is 100 degrees. That is, as long as the first angle is greater than the second angle, the angle values of the first angle and the second angle are not intended to limit the invention.

Next, please refer to FIG. 3 together, and FIG. 3 is a side view of the metal plate member of FIG. 2B. In the present embodiment, the pre-fold line 13 has a depth T2 with respect to the surface S of the metal plate member 10, and the depth T2 is half the thickness T1 of the metal plate member 10. Since the depth T2 of the pre-fold line 13 is half of the thickness T1, the force required to be applied to the metal plate member 10 is less when the metal plate member 10 is bent, and excessive stress concentration on the metal plate member 10 can be further prevented. The bend.

According to the processing method of the metal plate member and the metal plate member produced by the above embodiment of the present invention, the bending process is divided into two steps, and the two bending process is performed before and after the punching process, respectively. Therefore, after the first bending process is performed, the metal plate member has been deformed to a considerable extent, so that the metal plate member is less deformed or not deformed when the second bending process is performed. Since the opening of the metal plate member according to the embodiment of the present invention is formed after the first bending process, the amount of deformation generated by the opening hole is only affected by the second bending process, so that the amount of deformation caused by the opening is higher. Less or even no distortion. As such, although the invention is implemented For example, the distance between the opening of the metal plate member and the pre-folding line is less than or equal to three times the thickness of the metal plate member. However, the processing method of the metal plate member of the invention can effectively reduce or even avoid the metal caused by the bending process. The opening of the plate is deformed. Therefore, when the distance between the opening and the bending of the metal plate member in the prior art is too close, the problem of the opening deformation of the metal plate member is caused, and the design of the metal plate member is more flexible.

In addition, since the pre-fold line is formed on the metal plate member before the metal plate member is bent, and the depth of the pre-fold line with respect to the surface of the metal plate member is half of the thickness of the metal plate member, the bent metal plate member is At the same time, the metal plate member is bent along the pre-fold line, so that the process of bending is relatively smooth.

In addition, in some embodiments, the processing method of the metal plate member further includes a burr processing procedure to remove the burrs of the inner edge of the opening, so that the inner edge of the opening is relatively smooth. Thereby, the processing quality of the metal plate member is also improved.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the spirit of the invention is subject to change. Therefore, the scope of patent protection of the present invention is subject to the scope of the patent application attached to the specification.

Claims (6)

A method for processing a metal plate member, comprising: providing a metal plate member having a thickness, the metal plate member comprising a first plate portion and a second plate portion connected; performing a first bending process to enable Forming a first angle between the first plate portion and the second plate portion of the metal plate member; performing a punching process to form an opening in the first plate portion or the second plate portion a distance between the first plate portion and the second plate portion and the opening is less than or equal to three times the thickness; and performing a second bending process to continue bending the metal plate to Forming a second angle between the first panel portion and the second panel portion that is less than the first angle. The method of processing a metal sheet member according to claim 1, wherein the first angle is 100 degrees and the second angle is 90 degrees. The method for processing a metal plate member according to claim 2, wherein before the step of performing a first bending process, the method further comprises: forming a pre-fold line on the metal plate member, wherein the metal plate member is in the pre-fold line The first plate portion and the second plate portion are respectively provided on opposite sides. The method of processing a metal sheet member according to claim 3, wherein the pre-fold line has a depth with respect to a surface of the metal sheet member, the depth being half of the thickness of the metal sheet member. The processing method of the metal plate member according to claim 4, wherein the step of performing a punching process and the step of executing a second bending process further comprises: performing a burr processing procedure on the metal plate member . A metal plate member produced by a method of processing a metal plate member of one of claims 1 to 5.