A material fine blanking performance experimental device and evaluation method
An evaluation method and technology of experimental equipment, applied in the field of stamping, can solve problems such as no specific analysis process parameters, etc., and achieve the effects of improving efficiency, reducing breakage, and shortening the manufacturing process
Active Publication Date: 2016-08-17
WUHAN UNIV OF TECH
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Problems solved by technology
However, this evaluation method does not specifically analyze how to choose reasonable process parameters (punch fillet value, die fillet value, blanking gap, blank holder force, reverse jacking force), nor does it propose how to select reasonable process parameters according to material characteristics. To guide the design and manufacture of material fine blanking dies
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[0039]In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0040] Such as Figure 1-Figure 3 As shown, the material fine blanking performance experiment device of the present invention includes an upper mold part, a guide plate part and a lower mold part.
[0041] The upper mold part mainly includes an upper mold base 13, a punch backing plate 14, a mold handle 15, a punch fixing plate 12, a fixed segment punch 18, a rolling guide sleeve 10, and the like. The fixed section punch 18 is installed on the upper die base 13 by the punch backing plate 14 and the punch fixing plate 12 . The upper mold base part and the guide plate part are connected by the discharge screw 19 and the guide post 8. The guide plate part mainly includes a guide plate 7, a series of movable segmented punc...
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Abstract
The invention relates to a material fine blanking performance experiment device and evaluation method. The experiment device comprises an upper die portion, a guide plate portion and a lower die portion; the upper die portion comprises an upper die holder, a die handle, a male die cushion plate, a male die fixing plate and a fixed section male die; the guide plate portion comprises a guide plate, a return spring, a guide plate guide sleeve, a series movable section male die and a nitrogen spring; the lower die holder portion comprises a lower die holder, a female die, a female die pressing plate, a counter top block and a nitrogen spring; the evaluation method comprises the steps of S1, determining input parameters and output variables; S2, determining an experiment scheme; S3, setting an evaluation criterion; S4, evaluating material fine blanking performance; S5, carrying out a dimensionless method; S6, carrying out sensitivity analysis; S7, finding out technological parameters with the large influence degree to the output variables. According to the material fine blanking performance experiment device and evaluation method, the fine blanking performance of materials can be objectively evaluated, reasonable fine blanking technological parameters of the evaluated materials can be selected for guiding design and manufacturing of related dies, cost for producing and manufacturing is saved, and economic benefits are created.
Description
technical field [0001] The invention relates to the stamping field, more specifically, to a material fine blanking performance experimental device and evaluation method. Background technique [0002] Fine blanking is an advanced plastic processing technology for precision forming. It uses a fine blanking die, on a special press or a modified general press, to make the sheet purely shear along the required contour under the state of three-dimensional compressive stress. Extrusion and separation can obtain plate-shaped precision contour parts with smooth cross-section, vertical, good flatness and high precision. Fineblanking technology is a system engineering that comprehensively embodies various basic technologies and multidisciplinary technologies. Due to its advantages of high quality, high efficiency, and low consumption, it has developed very rapidly from 1923 to the present 90 years. It is mainly reflected in the following four aspects: the structure of fine blanking pa...
Claims
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IPC IPC(8): G09B25/02B21D28/14G01N33/00
CPCB21D28/14G01N33/00G09B25/02
Inventor 兰箭周青杨治会华林
Owner WUHAN UNIV OF TECH