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Hot dies type forging press and thermal insulation means for said press

A technology of thermal insulation device and forging press, which is applied in forging/pressing/hammer devices, swaging presses, upsetting presses, etc., can solve the problems of expensive materials, difficult processing and high cost

Active Publication Date: 2006-11-22
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, it is impossible to use the traditional forging press for hot die forging all the time, and it has to be replaced by a new type of larger-sized forging press, which greatly increases the investment cost and production cost
[0009] In addition, these insulations involve the use of a large number of materials, which are themselves very expensive (nickel-based superalloys, cobalt-based alloys, ceramics) and are difficult to machine and therefore very costly

Method used

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  • Hot dies type forging press and thermal insulation means for said press
  • Hot dies type forging press and thermal insulation means for said press

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Embodiment Construction

[0024] See figure 1 The hot mode forging press 1 of the present invention includes a lower press base 2 and an upper press base 3 facing the lower press base 2. The upper press base 3 can move vertically relative to the lower press base 2. The lower press base 2 and the upper press base 3 each support an intermediate press plate, which are respectively called the lower press plate 4 and the upper press plate 5, and both are made of steel here.

[0025] Each of the intermediate pressing plates 4 and 5 supports a die, which are called lower die 7 and upper die 8, respectively, for supporting and forging the forging 9. The forging 9 is generally a metal alloy, which requires the use of a hot press die forging process. In particular, it should be mentioned that this is an isothermal forging operation. The transverse heat insulation device, not shown in the figure, is well known to those skilled in the art, which enables this forging process to be implemented.

[0026] Insulation devi...

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Abstract

The invention relates to a forging press of the hot-die type with an operating temperature above a temperature T, comprising two dies between two die support elements, a thermal insulation means being placed between each die and its support element. The press is characterized in that the said means comprises at least two superposed layers (A, B), a first layer (A) comprising a first material having mechanical and thermal properties suitable for operation at a temperature above the temperature T, a second layer (B) comprising a second material having mechanical and thermal properties suitable for operating at a temperature below the temperature T, the thermal conductivity of which is lower than that of the first material and is approximately equal to 0.2 W / m.K, with a tolerance of 10%. Thanks to the invention, it is possible to obtain an effective thermal insulation means of small thickness.

Description

Technical field [0001] The invention relates to a hot-mode forging press, especially for isothermal forging; at the same time, it also relates to an insulation device for the forging press. Background technique [0002] In hot die forging, the upper die is lowered against the lower die to gradually press the parts to be forged, and the two dies are heated to a very high temperature (generally higher than 800°C). In this type of forging process, due to temperature, the forging material will assume a state corresponding to its forgeability range. In hot die forging, the duration of forging is relatively long; moreover, in any case, this time will not be shortened to a short instant equivalent to a shock. This type of forging is usually used to form parts that are difficult to forge, such as those with large surface areas or complex metallurgical materials. [0003] The present invention first relates to a hot die forging press, more specifically, to a forging press used for isother...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J9/06B21J13/02
CPCB21K29/00B30B15/34
Inventor 让-皮埃尔·博格吉尔贝·勒孔特
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A