Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of press-molded article and press molding apparatus

a molding apparatus and press molding technology, which is applied in forging presses, forging/pressing/hammering apparatuses, shape tools, etc., can solve the problems of excessive pressing force, increased metal plate, and difficulty in forming the thickened portion having the desired shape, so as to reduce pressing force and effectively prevent folding

Inactive Publication Date: 2018-12-20
KOBE STEEL LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The method effectively reduces the necessary pressing force and prevents material flow irregularities, ensuring the formation of thickened portions with precise shape control and stable support during the press molding process.

Problems solved by technology

In this configuration, friction force generated by sliding between the dies and the metal plate increases and pressing force, which is required for pressing, increases excessively.
When the folding occurs to the metal plate, a flow direction of the material of the metal plate becomes out of control, thus making it difficult to form the thickened portion having a desired shape.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of press-molded article and press molding apparatus
  • Manufacturing method of press-molded article and press molding apparatus
  • Manufacturing method of press-molded article and press molding apparatus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0083][Configuration of Press Molding Apparatus]

[0084]First of all, a configuration of a press molding apparatus 1 according to a first embodiment of the present invention will be described by mainly referring to FIG. 1.

[0085]The press molding apparatus 1 is an apparatus for press-molding a member to be pressed including a flat plate portion 10, such as a metal plate having a fixed thickness, so as to partially form a thick part (thickened portion) on the flat plate portion 10. The press molding apparatus 1 comprises a first die 11, a second die 12, a supporting member 13, a press member 18, and a drive section 18B.

[0086]The member to be pressed is, for example, a metal plate made of a material, such as hard steel, soft steel, or aluminum. In an example shown in the drawing, the whole member to be pressed is constituted by the flat plate portion 10.

[0087]It is noted that, in the present invention, the whole member to be pressed is not necessary to be constituted by the flat plate po...

second embodiment

[0122]Next, a press molding apparatus 2 and a manufacturing method of press-molded article according to a second embodiment of the present invention will be described with reference to FIG. 10 to FIG. 12. It is noted that only the parts in which the second embodiment differs from the above first embodiment will be described in detail.

[0123][Configuration of Press Molding Apparatus]

[0124]The press molding apparatus 2 comprises a first die 21, a second die 22, a supporting member 26, and a driving section 28B. The first die 21 is formed in an approximately rectangular parallelepiped shape and comprises a first opposing surface 21B opposing to the first main surface 10C, a first side surface 21C directing opposite to the first opposing surface 21B, and a first press portion 21A opposing to the first end portion 10A. In this configuration, the first press portion 21A and the first opposing surface 21B are provided in the same first die 21. The first side surface 21C of the first die 21 ...

third embodiment

[0143]Next, a press molding apparatus 3 and a manufacturing method of press-molded article according to a third embodiment of the present invention will be described with reference to FIG. 17A to FIG. 19B. It is noted that only the parts in which the third embodiment differs from the above first embodiment will be described in detail.

[0144][Configuration of Press Molding Apparatus]

[0145]The press molding apparatus 3 comprises a first die 33, a second die 34 arranged above the first die 33, a supporting member 39 on which the first die 33 is placed, a press member 38, and a driving section 38B. The first die 33 is constituted of a first divided portion 31 and a second divided portion 32 formed separately from the first divided portion 31. The first divided portion 31 and the second divided portion 32 are arranged to be opposed to each other in the horizontal direction.

[0146]The first divided portion 31 comprises a first portion 31D to be pressed, which is pressed by the press member ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
distanceaaaaaaaaaa
thickness T1aaaaaaaaaa
distance D2aaaaaaaaaa
Login to View More

Abstract

A manufacturing method of press-molded article of the present invention comprises a step of placing a member to be pressed in a press molding apparatus and a step of pressing a flat plate portion of the member to be pressed by bringing a first press portion and a second press portion closer to each other. A first opposing surface and a second opposing surface, while facing to each other, keep in contact with the flat plate portion during pressing. In the press step, a thick part is formed on the flat plate portion by allowing a part of a material of the flat plate portion to flow, in a press direction, into a thickened portion-forming section formed on the first opposing surface. The second opposing surface is moved to the press direction as the flat plate portion is pressed by the first press portion and the second press portion.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 15 / 298,395 filed Oct. 20, 2016, which claims priority to and the benefit of Japanese Patent Application No. 2015-225995 filed Nov. 18, 2015, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention relates to a manufacturing method of press-molded article and a press molding apparatus.Description of the Related Art[0003]There has been conventionally known a technique of manufacturing a metal plate used in a vehicle skeleton part of automobile and the like by press molding. In the above uses, there are growing demands on not only a metal plate having a fixed thickness, but also a metal plate having a thickness difference by partially forming a thickened portion. A manufacturing apparatus and method of the metal plate having such a thickened portion by press molding are disclosed in the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): B21J9/02B21J13/02B21J9/06B21J5/08B21D35/00B21D22/02B21J13/08B21D49/00
CPCB21J13/025B21J9/06B21J5/08B21J9/022B21D35/006B21D22/02B21J13/08B21D49/00B21D37/10B21D28/02B21D28/14
Inventor SAKAMOTO, KAZUKIHAYASHIDA, YASUHIROWATANABE, KENICHINAITOU, JUNYAFUNADA, KENSUKEKIMURA, TAKAYUKIIWAYA, JIRO
Owner KOBE STEEL LTD