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Device and method used for rigid mold bulging and hydraulic bulging tests of plates

A hydraulic bulging and rigid technology, which is applied in the field of plate rigid die bulging and hydraulic bulging test devices, can solve the problems of inconvenient use of test molds and increased test costs, and achieve rich use functions, simple loading and unloading, and increased The effect of interchangeability of molds

Active Publication Date: 2018-05-01
BEIHANG UNIV
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  • Application Information

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Problems solved by technology

It increases the cost of the test, and the use of the test mold is not convenient enough

Method used

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  • Device and method used for rigid mold bulging and hydraulic bulging tests of plates
  • Device and method used for rigid mold bulging and hydraulic bulging tests of plates
  • Device and method used for rigid mold bulging and hydraulic bulging tests of plates

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Embodiment Construction

[0040] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0041] like figure 1 , figure 2 and Figure 5 , a device of the present invention that can be used for plate rigid die bulging and hydraulic bulging tests includes: liquid chamber 1, hexagon socket head cap screw 2, die base 3, die insert 4, blank holder 5, press Side transfer block 6, hemispherical head bulging punch 7, edge holder 8, slotted taper end set screw 9, O-shaped rubber sealing ring 10, hexagon socket head cap screw 11. According to different test purposes, the combination mold can be used for rigid mold bulging test after assembling the mold in different ways ( figure 1 shown) and hydraulic bulging test ( figure 2 shown).

[0042] like figure 1 , when the combined mold is used for the rigid mold bulging test, it consists of a liquid chamber 1, a die base 3, a die insert 4, a slotted taper end set screw 9, a blank holder ring 5, an...

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Abstract

Disclosed are a device and method used for rigid mold bulging and hydraulic bulging tests of plates in order to solve the problems that an existing test mold is simplex in function and poor in interchangeability. The purposes of the device are changed by changing the installing positions of a blank holder and a concave mold base, and the device is used for the rigid mold bulging and hydraulic bulging tests. Concave mold inserts with inner rings in different concave mold diameters are correspondingly replaced according to the size of a semi-bulb bulging convex mold used in the rigid mold bulging test and different plate thicknesses. Concave mold inserts with inner rings in different concave mold diameters or with different ellipticities can be replaced according to the need for changing thedeformation strain route of the plates in the hydraulic bulging test. Meanwhile, the device and method used for the rigid mold bulging and hydraulic bulging tests of the plates have the advantages that the test molds are easy to load and unload, the flexibility of the tests and interchangeability of the molds are increased, and the costs of the molds are reduced.

Description

technical field [0001] The invention belongs to the technical field of analysis and measurement control, and in particular relates to a device and method which can be used for plate rigid mold bulging and hydraulic bulging tests. Background technique [0002] Determining material properties is a necessary way to study the deformation behavior of metal materials and the control of forming defects. Among them, sheet metal forming limit and material flow stress are the key performance parameters reflecting the material forming performance. The forming limit diagram is a graph composed of the ultimate strain values ​​that the metal sheet can achieve under different strain states. Combined with numerical simulation technology, it can be used to predict the occurrence of defects in the sheet metal forming process. The material flow stress obtained from the test can be used for numerical simulation of elastic and plastic deformation processes under complex loading paths, and to so...

Claims

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Application Information

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IPC IPC(8): B21D26/021B21D37/10G01N3/02
CPCB21D26/021B21D37/10G01N3/02
Inventor 郎利辉巫永坤孙志莹王耀张泉达梅寒
Owner BEIHANG UNIV
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