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Perforated plate, punch thereof and plastic working method and prediction method of mechanical behavior value

A technology of mechanical properties and perforated plates, which is applied in the field of car body components, can solve the problems that hinder the flexible use of perforated frame strength members, calculate the mechanical properties of perforated frames, and prolong the calculation time, so as to reduce weight, reduce tensile stress, and realize effect of weight

Inactive Publication Date: 2009-05-06
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the number of elements is large and the calculation time is extended
[0033] That is to say, in the case of setting a plurality of small holes on a part, it is necessary to divide into elements smaller than the hole diameter, and this will make the calculation of the mechanical properties of the perforated frame difficult, thereby preventing the perforated frame from being used as Utilization of Strength Members

Method used

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  • Perforated plate, punch thereof and plastic working method and prediction method of mechanical behavior value
  • Perforated plate, punch thereof and plastic working method and prediction method of mechanical behavior value
  • Perforated plate, punch thereof and plastic working method and prediction method of mechanical behavior value

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experiment example

[0242] Experimental examples of the present invention are as follows. In addition, the present invention is not limited to the cases described in the experimental examples.

[0243] ○Punching machine specifications (common):

[0244] The diameter of the punch: 150mm

[0245] The shape of the front end of the punch: hemisphere or circular table

[0246] The diameter of the hole of the upper die: 153mm

[0247] The radius of the flange on the upper mold: 10mm

[0248] Axial force of the first cylinder: 100 tons

[0249] The diameter of the hole of the lower die: 160mm

[0250] Lubricant: lubricating oil

[0251] ○Soft steel plate:

[0252] Thickness: 1.0mm

[0253] Material: JIS G3131 SPHD

[0254] Number of samples: 6

[0255] ○Determination of drawing height:

[0256] The drawing height at the moment of fracture is taken as the "maximum drawing height". The maximum drawing heights obtained by investigating the six samples are shown in the tabl...

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Abstract

The present invention provides a perforated plate, a method for processing punching holes and a plastic working method for the perforated plate, as well as a method for predicting mechanical property value of tapping frames. The structure of the perforated plate is that in a sheet-shaped component with stretching force in a direction, multirow well group is configured in interleaving shape in thedirection, and two adjacent rows are separated with each other through a belt-shaped portion with a prescribed width.

Description

technical field [0001] The present invention relates to a thin-plate-shaped vehicle body component used for a vehicle body, and more particularly to a perforated plate in which a plurality of holes are arranged in a zigzag shape. Also, the present invention relates to an improvement in a punching method for punching a sheet material. Furthermore, the present invention also relates to a technique of performing plastic working on a mild steel perforated plate. It should be noted that plastic processing is a processing method including deep drawing (including deep drawing), bending, and drawing. In addition to drawing and deep drawing in the narrow sense, it also includes bulging processing, etc. In addition, the invention also relates to a method for predicting the mechanical property values ​​of a frame with a plurality of small holes. Background technique [0002] For example, the hood of a car is constructed by combining an outer panel and an inner panel. Since the inner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/00B62D21/10B62D25/10B62K19/00B21D22/20G01M19/00G01M99/00
Inventor 松山昇平
Owner HONDA MOTOR CO LTD
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