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Abrasive grain flow quantitative abrading method

A technology of abrasive flow and grinding, which is applied in the field of abrasive flow processing, can solve the problems of uncontrollability and high scrap rate of manual polishing by human experience, and achieve the effect of eliminating the influence of human experience and avoiding uncontrollability

Active Publication Date: 2020-02-28
AECC AVIATION POWER CO LTD
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Problems solved by technology

However, this method has the influence of human experience and the uncontrollability of manual polishing, and manual polishing will also produce a high scrap rate

Method used

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  • Abrasive grain flow quantitative abrading method
  • Abrasive grain flow quantitative abrading method

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Embodiment Construction

[0038] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate ...

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Abstract

The invention discloses an abrasive grain flow quantitative abrading method. The method comprises the following steps: determining the amount of to-be-increased airflow for an airflow channel of a part to-be-ground; conducting abrading experiments on test pieces to determine optimal abrasive pressure and optimal abrasive flow rate; determining the abrading rate of an abrasive according to preset abrading time; determining the total volume of the abrasive according to the abrading rate of the abrasive; performing quantitative abrading of abrasive flow according to the determined abrasive pressure, abrasive flow rate and total volume. Abrading is conducted by quantitative abrading parameters and total abrading amount of variables according to the airflow detection results of different parts,and quantitative abrading requirements of the airflow channel of each part are met. The manual repeated polishing and repairing process is replaced with the quantitative abrading method of abrasive grain flow. Compared with the traditional manual polishing and repairing method, the method has the advantages that the influence from human experience, uncontrollability of manual polishing and repairing and high rejection rate generated by manual polishing and repairing are eliminated.

Description

technical field [0001] The invention belongs to the field of abrasive flow processing, and relates to a quantitative grinding method of abrasive flow. Background technique [0002] The flow of the deflector flow passage is strictly required in the design of the engine. It requires that the air inlet and the air outlet are at a constant pressure ratio to detect the total effective area of ​​the flow passage, which requires S±1.5%. Since the air flow channel of the guide is a precision casting, when the air flow is detected, the air flow of each part is different. If the air flow does not meet the requirements of the design drawing, it is necessary to use a process to grind the air flow channel and increase the flow channel throat. area until the airflow test is qualified. see Figure 5 , If the air flow enters the flow channel from the air inlet, when the air flow is detected, the ratio of the inlet air pressure and the outlet air pressure is M. At this time, the total effec...

Claims

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Application Information

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IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 张永刚高相毅彭明友石红敏杨立强柳培发段佩谢来春
Owner AECC AVIATION POWER CO LTD
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