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Method of stacking horizontal rib on unequal-height section through laser cladding operation

A laser cladding and horizontal rib technology, applied in laser welding equipment, improving energy efficiency, improving process efficiency, etc., can solve the problems of insufficient strength, long casting cycle, welding deformation, etc., and achieve the accumulation rate and material utilization rate. High, rib structure firm, high parallelism effect

Active Publication Date: 2019-02-19
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, machining is time-consuming and consumable, and the waste is serious; welding is deformed or insufficient in strength, and the casting cycle is long and subsequent processing is required

Method used

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  • Method of stacking horizontal rib on unequal-height section through laser cladding operation
  • Method of stacking horizontal rib on unequal-height section through laser cladding operation
  • Method of stacking horizontal rib on unequal-height section through laser cladding operation

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Experimental program
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Effect test

Embodiment 1

[0033] See figure 2 , the stacking positions of the ribs in this embodiment include planes and slopes. Specifically, the total length of the ribs is 34.4mm, the length on the plane is 10mm, and the length on the slope is 24.4mm; The projected length is 5.37mm. The number of rib segments is determined according to the above content, and the height difference between adjacent ribs must be less than or equal to 0.5mm. Wherein, sin α=5.37 / 25=0.2148, cos α=0.9767, it can be seen from the above formula that the number of rib segments in this embodiment is The present embodiment takes n=14, wherein, rib 2 is the first section, rib 13 is the end (planar section), rib 1 and 14 are the deceleration sections on the first section and the end respectively, and the length of the deceleration section is 1mm. Then determine the cladding height of each rib according to the actual needs, and then determine the cladding speed of each rib according to the relationship between cladding height a...

Embodiment 2

[0038] See image 3 , the stacking position of ribs in this embodiment is only on the slope,

[0039] In this embodiment, laser cladding is used to accumulate horizontal ribs only on the slope. Specifically: the angle between the slope and the horizontal line is 9°, determine the length of the stacking position, that is, the length of the rib is 30mm, and determine the number of rib segments according to the above content , the height difference between adjacent ribs must be less than or equal to 0.5mm. It can be seen from the above formula that the number of rib segments in this embodiment is In this embodiment, n=11, wherein the rib 201 is the first section, the rib 1001 is the end, and the ribs 101 and 1101 are the deceleration sections arranged on the first section and the last section respectively, and the length of the deceleration section is 1mm. Then determine the cladding height of each rib according to actual needs, and then determine the cladding speed of each ri...

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Abstract

The invention relates to a method of stacking a horizontal rib on an unequal-height section through laser cladding operation. The method comprises the following steps that the unequal-height section and a laser cladding device are provided, the stacking position is determined on the unequal-height section, and the length of the rib on the unequal-height section is determined according to the stacking position; and the lowest portion of the stacking position serves as the head segment of the rib, the highest portion of the stacking position serves as the tail segment of the rib, the number of segments of the rib is determined according to the length and the height of each segment of the rib in the vertical direction, the cladding speed of each segment of the rib is determined according to the relationship of the cladding height of each segment of the rib and the scanning speed under the condition of a certain parameters, and the laser cladding operation is conducted, so that the horizontal rib is obtained. According to the method, a segmentation speed changing method is adopted to conduct segmentation on the rib on the unequal-height section, and the rib obtained through the cladding operation can be of a horizontal structure by use of the influence of the change of the scanning speed on the height of the cladding layer.

Description

technical field [0001] The invention relates to a method for laser cladding and stacking horizontal ribs on sections with different heights, and belongs to the technical field of laser cladding forming. Background technique [0002] Laser cladding forming technology is a new technology developed by combining laser cladding technology and rapid prototyping technology. It slices the formed part according to a certain thickness, converts the three-dimensional design model into a series of two-dimensional contour information, and then uses the method of laser cladding to accumulate materials layer by layer according to the contour trajectory, and finally forms a three-dimensional solid part. In the prior art, machining, welding and casting are mostly used to process ribs on unequal height sections. However, machining is time-consuming and consumable, and the waste is serious; welding is deformed or insufficient in strength, and the casting cycle is long and subsequent processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/08B22F3/105B33Y10/00
CPCB22F7/08B33Y10/00B22F10/00B22F10/25B33Y80/00B23K26/34B23K26/03Y02P10/25B23K26/342
Inventor 石拓李东升李刚蒋伟伟苏昊
Owner SUZHOU UNIV
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