Method for strengthening edges of tool and die based on laser transformation hardening
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 technology of laser phase change hardening and tooling, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as consumption, and achieve the effect of ensuring optimality and small material resources
Active Publication Date: 2010-09-29
ZHEJIANG UNIV OF TECH
View PDF5 Cites 8 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
[0006] In order to overcome the consumption of manpower and material resources in the prior art, and overcome the defects such as the collapse of the edge (or protrusion) of the tool and mold, the invention provides a kind of manpower and material resource consumption, which does not cause waste and can ensure the optimal offset distance. A revolutionary method for tool and mold surface strengthening based on laser phase transformation hardening
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] refer to figure 1
[0033] The method for strengthening the edge of the tool and mold based on laser phase transformation hardening comprises the following steps:
[0034] 1), select the laser intensified light source according to experience, set the light source parameters, the light source parameters include laser wavelength, power, scanning speed and spot diameter; obtain the parameters of the mold to be processed, the mold parameters include material properties, phase transition temperature , melting point and geometric size;
[0035] 2) Set the starting position of the strengthening light source, perform laser scanning, and pass compressed air to quickly cool the tool and mold to achieve the purpose of surface strengthening;
[0036] It is characterized in that: simulate and calculate the situation of the light source irradiating the tool and mold to obtain the optimal strengthening distance between the strengthening light source and the edge of the tool and mold...
Embodiment 2
[0047] combine Figure 2-10 , and the actual test further illustrates the present invention:
[0048] Select the quality of about 0.9kg, P20 plastic tool and die steel, strengthen the workpiece size is 15mm × 10mm × 10mm, and its edge is strengthened with H13 alloy powder. According to the intensified process, using cross-flow CO 2 The laser power required by the laser is P=1.5kW, the spot diameter D=4mm, and the powder is fed synchronously. Specific steps are as follows:
[0049] (1) The simulation adopts the same process as the actual one—synchronous powder feeding method, and the surface of the same matrix material plastic tool and die steel P20 is clad with H13 powder. The laser process parameters are shown in Table 1:
[0050] Table 1 Laser process parameters
[0051] Process parameters
Laser scan rate v(m / s)
0.005
Laser power P(KW)
1.5
Spot size D(mm)
4
[0052] (2) Select a Gaussian heat source model similar t...
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
Property
Measurement
Unit
melting point
aaaaa
aaaaa
Login to view more
Abstract
The invention relates to a method for strengthening edges of a tool and a die based on laser transformation hardening. The method comprises the following steps of: selecting a laser strengthening light source according to experience, and setting light source parameters, wherein the light source parameters comprise laser wavelength, power, scanning speed and spot diameter; obtaining the parameter of the tool and the die to be processed, wherein the tool and die parameters comprise material properties, transformation temperature, melting point and geometry size; setting a starting position of the strengthening light source, carrying out laser scanning, and fast cooling the tool and the die through compressed air so as to achieve the purpose of surface strengthening; and carrying out simulation calculation under the condition that the light source irradiates the tool and the die so as to obtain the optimal strengthening distance between the strengthening light source and the edges of thetool and the die, and enabling the distance between the starting position of the strengthening light source and the edges of the tool and the die to be equivalent to the optimal strengthening distance. The invention consumes less human and material resources, can not produce waste, can ensure the optimality of an offset distance, and especially has greater advantages on laser strengthening of a single product.
Description
technical field [0001] The invention relates to a laser surface strengthening treatment method, in particular to a laser phase transformation hardening method for the edge of a mold. technical background [0002] The main failure mode of tooling is surface wear. Therefore, it is the most economical and effective method to use surface treatment technology to improve the comprehensive performance of the surface of the tool and mold such as strength, hardness, wear resistance, etc., to reduce wear and improve the service life of the tool and mold. At present, a variety of surface strengthening treatment technologies have been developed in the tool and mold industry. The common ones are: thermal spraying, plasma chemical heat treatment, ion implantation technology, vapor deposition technology, TD treatment, electroplating and electroless plating, brush plating, etc. With the development of large-scale products, especially the emergence of high-speed, high-efficiency and high-pr...
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