Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

The Deep and Narrow Groove Precise Machining Method of Flame Tube Thin-walled Parts

A thin-walled part, precision machining technology

Active Publication Date: 2018-07-20
CHINA HANGFA SOUTH IND CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for precision machining of deep and narrow grooves of thin-walled parts of flame cylinders to solve the technical problems of cutting tools, deformation of groove width and low efficiency in the process of processing deep and narrow grooves of thin-walled parts of flame cylinders.

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
  • The Deep and Narrow Groove Precise Machining Method of Flame Tube Thin-walled Parts
  • The Deep and Narrow Groove Precise Machining Method of Flame Tube Thin-walled Parts

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0047] Considering that the material of the part is GH3044, which is a nickel-based solid solution alloy, the hardness HBd≥3.6, and the machining performance is poor, the appropriate cutting amount (cutting speed, feed rate, back cutting amount) is determined based on the tool model and material characteristics. )scope;

[0048] Considering that the slot width of the part is required to be 1.5 (+0.1, 0) mm, use a slot cutter with a width of 1.5 mm and a tool tip arc R0.1 for rough machining, and use a slot with a width of 1.5 mm and a tool tip arc R0.75 Knife for finishing.

[0049] 1. Within the allowable feed range, use the maximum feed speed to cut into the groove depth of 1.5mm. The iron chips formed at this time are thick and hard, which can realize automatic chip removal and ensure a certain processing efficiency;

[0050] 2. From the groove depth of 1.5mm to the position of 3 / 4 groove depth, use medium feed for processing, and the iron filings formed at this time are s...

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
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a precision machining method for a deep and narrow groove of a flame tube thin-walled part. The precision machining method comprises the following steps that a, a matched rough machining grooving cutter, a matched finish machining grooving cutter and matched machining parameters are selected according to materials of the part and design dimensions of the length, the width and the depth of the to-be-machined deep and narrow groove in the part; b, an initial position of the to-be-machined deep and narrow groove is cut by a first depth, continuous feeding is conducted at an allowable maximum feeding speed, and an allowance is reserved; c, downward machining is continued without retracting, a second depth is reached through cutting, continuous feeding is continuously conducted at a medium feeding speed, and an allowance is reserved; d, downward machining is continued without retracting, a third depth is reached through cutting, machining is continuously conducted at a minimum feeding speed, and an allowance is reserved; and e, the finish machining grooving cutter is a profiling arc groove cutter and is used for completing finish machining to meet the final dimensional requirements.

Description

technical field [0001] The invention relates to the technical field of aero-engine parts processing, in particular to a deep and narrow groove precision machining method for thin-walled parts of a flame tube. Background technique [0002] Aeroengine flame cylinder parts have large diameter and thin wall thickness. There are multi-stage air film cooling grooves on the body. The main characteristics of this type of air film grooves are narrow width and deep depth. We collectively call them deep and narrow grooves. Considering the particularity of the structure of the air film groove, in order to ensure the processing quality of the parts and ensure that the groove width is qualified, there are generally two traditional processing methods: [0003] The first method: use ordinary trucks to dig grooves, and manually control the relevant dimensions. There are several problems with this method: people with high operating skills are required to operate; the welded groove cutter use...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B23B5/00
CPCB23B5/00B23B2220/12
Inventor 赵丹丹柏慧赵宇平马滔邓春珍
Owner CHINA HANGFA SOUTH IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com