Powder cladding additive manufacturing based method for growing complex structure on surface of cast and forged piece

A technology of additive manufacturing and surface growth, which is applied in the direction of additive manufacturing, additive processing, and improvement of process efficiency. It can solve problems such as stress concentration, low production efficiency, and mechanical properties inferior to forgings, so as to avoid stress concentration and improve production efficiency. And high product qualification rate, avoid the effect of coarse tissue

Inactive Publication Date: 2018-12-21
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows creating complicated shapes without requiring costly materials or tools like sanders or mills. It uses special techniques such as laser sintering (LS), stereolithography (SLA) or digital light processing (DLW). These methods allow for precise control over how these patterns will be formed during fabrication, which improves their overall quality compared to conventional processes used beforehand.

Problems solved by technology

This patents discusses different ways that current techniques may be applied during producing complicated shapes inside larger components like turbine engine rotor disks (TDR). These difficulties include poor surface quality due to fine texture caused by precise casting processes, difficulty in removing excessive material from these types of surfaces without causing damage, limited use of expensive equipment when making certain features, and slow production cycles associated with traditional methods involving creation of metal dies.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Using 316L stainless steel rod castings as blanks, the base structure is prepared by machining, and the base structure is subjected to a heat treatment process of 850℃~985℃ / 0.5h~2h / oil or air cooling. Then through the composition and organization detection, the organization and composition of the base structure are determined. Then use high-precision three-dimensional scanning or three-coordinate machine to scan the base structure, and form the base structure model through GomInspect and other data processing software. Using Cero / ProE or other three-dimensional model design software, based on the matrix structure model, perform the required complex structure design on it, and finally synthesize an integrated three-dimensional model. Using Magics or other software to perform two-dimensional slicing of the three-dimensional model, that is, the model data is divided into a series of two-dimensional data according to the same layer thickness along the Z axis, and processe

Embodiment 2

[0033] The ring casting made of TC4 titanium alloy is used as the blank, and the base structure is prepared by machining, and the base structure is subjected to a heat treatment process of 900℃~985℃ / 0.5h~2.5h / oil cooling or air cooling. Then through the composition and organization detection, the organization and composition of the base structure are determined. Then use high-precision three-dimensional scanning or three-coordinate machine to scan the base structure, and form the base structure model through GomInspect and other data processing software. Using UG or other three-dimensional model design software, based on the matrix structure model, perform the required complex structure design on it, and finally synthesize an integrated three-dimensional model. Using Magics or other software to perform two-dimensional slicing of the three-dimensional model, that is, the model data is divided into a series of two-dimensional data according to the same layer thickness along the

Embodiment 3

[0035] A cake-shaped casting made of K438 nickel-based alloy is used as the blank, and the base structure is prepared by machining, and the base structure is subjected to a heat treatment process of 780℃~1080℃ / 0.5h~3.5h / oil cooling or air cooling. Then through composition and tissue detection, the organization and composition of the base structure are determined. Then use high-precision three-dimensional scanning or three coordinate machine to scan the base structure, and form the base structure model through data processing software such as GomInspect. Using Catia or other three-dimensional model design software, based on the matrix structure model, carry out the required complex structure design on it, and finally synthesize an integrated three-dimensional model. Use the high-energy arc 3D printing platform to start the additive manufacturing process on the base material according to the described processing path. The powder is made of nickel-based Ni60Cr16B3.5Si4.5Fe15C0.5

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

No PUM Login to view more

Abstract

The invention discloses a powder cladding additive manufacturing based method for growing a complex structure on the surface of a cast and forged piece, and belongs to the technical field of metal forming and manufacturing. The method comprises the following steps of: designing a matrix structure part model according to a to-be-manufactured final part and manufacturing the matrix structure part; performing structural design on the surface of the matrix structure part model to obtain a three-dimensional model of the final part; and performing two-dimensional slicing treatment on the three-dimensional model, leading obtained parameters into a 3D printer, and using powder which is the same with the matrix structure part material to perform powder cladding type additive manufacturing on the surface of the matrix structure part through the 3D printer, thereby obtaining the final part. Compared with conventional casting, forging and machining, the method can prevent the cast and forged piecefrom a coarse structure and stress focus, also can avoid a low material utilization rate caused by forged part machining, and does not need to manufacture a dear powder metallurgic mould; and meanwhile, compared with pure 3D printing, the method is higher in production efficiency and is high in product qualification rate.

Description

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

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
no application Login to view more
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap