Unlock instant, AI-driven research and patent intelligence for your innovation.
A Stamping Die and a Method for Testing Its Strain Forming Capability
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A stamping die and capability technology, applied in the field of stamping die and strain forming capability testing, can solve problems such as inability to detect material properties
Active Publication Date: 2019-01-01
BEIJING ELECTRIC VEHICLE
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] In order to solve the above technical problems, the present invention provides a stamping die and a method for detecting the strain forming ability, which solves the problem that the material performance cannot be detected under the multi-strain state in the prior art
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] Such as Figure 1 to Figure 4 As shown, the embodiment of the present invention provides a stamping die, including: a die 1 , a blank holder 2 arranged on the die 1 , and a punch 3 matched with the die 1 .
[0033] Wherein, the concave mold 1 is also called the cavity, which is the main part of the outer surface of the molded plastic part. The concave mold 1 can be installed on the fixed mold or on the movable mold.
[0034] The blank holder 2 is arranged on the die 1 , and a ring-shaped pressing device is arranged on the edge part between the die 1 and the punch 3 . During the stamping process, the main function of the blank holder 2 is to prevent the edge of the workpiece from wrinkling due to instability.
[0035] The punch 3 is also called a punching needle, a punch, a male die, an upper die, etc., and is mainly used to form parts on the inner surface of the product. Wherein, the shape of the punch 3 matches the shape of the die 1 . Since the strain states of dif...
Embodiment 2
[0040] The first embodiment above introduces the stamping die of the present invention, and the following embodiment will further introduce and explain the method of strain forming ability detection using the stamping die in combination with the accompanying drawings and specific application scenarios.
[0041] Specifically, as Figure 5 As shown, the method for detecting the strain forming ability comprises the following steps:
[0042] Step 501: Stamping the board to be tested through a stamping die.
[0043]Wherein, the stamping die includes: a die, a blank holder arranged on the die, and a punch matched with the die; wherein, the punch at least includes a first punching end face and a second punching end face connected to each other, the first The first stamping end surface and the second stamping end surface intersect each other to form a first angle. In the production and manufacture of automobiles, 60%-70% of metal parts need to be plastically formed. Stamping is an i...
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
Login to View More
Abstract
The invention discloses a stamping die and a strain forming capability detecting method. The stamping die comprises a female die, a blank holder arranged on the female die and a male die matched with the female die, wherein the male die at least comprises a first stamping end surface and a second stamping end surface which are connected with each other, and the first stamping end surface and the second stamping end surface are crossed with each other, forming a first angle. Strain forming capability detection is carried out by adopting the stamping die, and a to-be-detected plate material is stamped through the stamping die. The stamping die stops stamping when detects that the to-be-detected plate material breaks or reaches a preset height. The tensile depth size, strain states and surface appearances of the to-be-detected plate material after stamping treatment are detected, and the occurring of three strain states, including drawing strain, plane strain and expansion strain, can be realized in one stamping process, so that the forming capability of the material in complicated strain states and the defects of the material in each strain state can be detected.
Description
technical field [0001] The invention relates to the field of component detection, in particular to a stamping die and a method for detecting strain forming capability. Background technique [0002] The shape of automobile body parts is relatively complex. The plastic deformation in the forming of body parts is that the mold exerts an external force on the sheet to cause the shape and size of the deformation area of the sheet to change. This change in shape and size finally makes the sheet be processed into a stamping part. . The action mode and magnitude of a certain force correspond to a certain deformation. During the entire stamping forming process of the part, the stress and strain in the deformation zone and the direction are changing. This change determines the nature of the stamping forming. At present, there are many kinds of auto parts processed by stamping, and their shapes are becoming more and more complex. However, no matter how complex the shape of the parts...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More 
