Heat exchanger

a technology of heat exchanger and heat exchanger body, which is applied in the direction of metal-working apparatus, 3d object support structure, auxiliary shaping apparatus, etc., can solve the problems of affecting the performance of the component, the first portion of the component is susceptible to creep, and the second portion of the component is susceptible to fatigu

Active Publication Date: 2018-10-04
HAMILTON SUNDSTRAND CORP
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a method for manufacturing a component that is susceptible to multiple failure modes, such as creep and fatigue. The method involves creating a stereolithography file with a geometry of the component and applying energy to a powdered material to fuse it and form the component. The method includes using different sets of parameters to create different microstructures in different layers of the component, such as a first layer with a first microstructure and a second layer with a second microstructure. The first microstructure is optimized for creep and the second microstructure is optimized for fatigue. The method also includes adding a core to the component and integrating it with the layers, which can have a different surface roughness and material strength than the layers. The core can also have a plurality of fins with a different thickness based on the orientation of the fins and the processing parameters used during formation. The technical effect of this patent is to provide a method for manufacturing a component that is resistant to multiple failure modes and has improved performance.

Problems solved by technology

In addition to one or more of the features described above, or as an alternative, in further embodiments the first portion of the component is susceptible to creep.
In addition to one or more of the features described above, or as an alternative, in further embodiments the second portion of the component is susceptible to fatigue due to thermal and load cycling.

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
  • Heat exchanger
  • Heat exchanger
  • Heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032]A detailed description of one or more embodiments of the disclosed apparatus and method are presented herein by way of exemplification and not limitation with reference to the Figures.

[0033]With reference now to FIGS. 1 and 2, an example of a heat exchanger 20 configured to efficiently transfer heat from a first fluid to a second fluid is illustrated. The illustrated heat exchanger 20 is generally rectangular in shape; however, other shapes are also contemplated herein. A first fluid inlet header 22, an first fluid outlet header 24, a second fluid inlet header 26 and a second fluid outlet header 28 are arranged in fluid communication with a core 30 of the heat exchanger 20 such that heat is configured to transfer between the first fluid and the second fluid within the heat exchanger 20.

[0034]As illustrated, the first fluid inlet header 22 and the first fluid outlet header 24 are disposed adjacent opposite surfaces of the core 30. However, in other embodiments, such as where th...

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

PropertyMeasurementUnit
Grain sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Creep rateaaaaaaaaaa
Login to View More

Abstract

A method of manufacturing a component susceptible to multiple failure modes includes generating a stereolithography file including a geometry of the component. The geometry of the stereolithography file is divided into a plurality of layers. Each of the layers includes a first portion and a second portion of the component. Energy from an energy source is applied to a powdered material such that the powdered material fuses to form the first portion and the second portion of each of the plurality of layers. Applying energy from the energy source to form the first portion of the plurality of layers includes operating the energy source with a first set of parameters and applying energy from the energy source to form the second portion of the plurality of layers includes operating the energy source with a second set of parameters. The first set and second set of parameters are different.

Description

BACKGROUND[0001]Exemplary embodiments of this invention generally relate to heat exchangers and, more particularly, to methods of manufacturing a heat exchanger.[0002]Heat exchangers are devices built for transferring heat from one fluid to another. The fluids may be separated by a solid wall or other divider that keeps them from mixing. Heat exchangers are commonly used in refrigeration, air conditioning, space heating, electricity generation, and chemical processing. Heat exchangers find use in at least the aerospace and automobile industries.[0003]Heat exchangers are typically required to function in extreme conditions, with varying operating profiles. Each section or component of a heat exchanger is susceptible to a different failure mode. For example, the headers or manifolds of the heat exchanger are more likely to fail as a result of creep and the core of the heat exchanger is more likely to fail due to fatigue. Conventional heat exchangers are typically overdesigned to withs...

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
IPC IPC(8): F28F19/00F28D1/053B29C67/00B28B1/00B28B17/00B33Y10/00B33Y50/02B33Y80/00B22F3/105B22F5/10B23K26/342B23K26/70
CPCF28F19/00B23K2101/14B29C67/0077B29C67/0088B28B1/001B28B17/0081B33Y10/00B33Y50/02B33Y80/00B22F3/1055B22F5/10B23K26/342B23K26/702F28F2260/00F28F2255/18B29K2105/251B29L2031/18B22F2003/1057B22F2998/10F28D1/05316F28D1/00B29C64/282B29C64/153B29C64/386Y02P10/25B22F10/36B22F10/85B22F10/28B22F10/00B29C64/295
InventorMIRONETS, SERGEYJAGDALE, VIJAY NARAYANFENNESSY, COLETTE O.
OwnerHAMILTON SUNDSTRAND CORP