Calculation of negative-pressure chip in suction-type internal chip removal system and analysis of influencing factors

2018 ◽  
Vol 99 (1-4) ◽  
pp. 201-209 ◽  
Author(s):  
Chenyang Xu ◽  
Wang Yiwen ◽  
Xu Jiazhong ◽  
Liu Xianli
Keyword(s):  
Influencing Factors ◽  
Negative Pressure ◽  
Chip Removal ◽  
Removal System

scholarly journals The design and performance evaluation of assisted chip removal system in helical milling of CFRP/Ti stacks

2020 ◽  
Vol 108 (5-6) ◽  
pp. 1297-1308
Author(s):  
Yajun Liu ◽  
Shipeng Li ◽  
Hao Li ◽  
Xuda Qin ◽  
Youqiang Xing ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Helical Milling ◽  
And Performance ◽  
Chip Removal ◽  
Removal System

scholarly journals Analysis of improving ways for dual nozzle negative pressure chip removal device in deep hole processing

2019 ◽  
Vol 1168 ◽  
pp. 022087
Author(s):  
Guo Zhenhao ◽  
Guan Shixi ◽  
Guan Bo ◽  
Chang Jing ◽  
Liu Ya
Keyword(s):  
Negative Pressure ◽  
Deep Hole ◽  
Chip Removal

scholarly journals Design and Fabrication of Automatic Spring Type Chip Conveyor

2019 ◽  
Vol 8 (2) ◽  
pp. 917-920
Keyword(s):  
Cnc Machining ◽  
Numerical Control ◽  
Shop Floor ◽  
Small Scale ◽  
Metal Chips ◽  
Spring Type ◽  
Increase Productivity ◽  
Belt Conveyors ◽  
Chip Removal ◽  
Removal System

It is necessary to use an efficient chip removal system to increase productivity on the shop floor. Conventional conveyor systems such as belt conveyors are being used in industries. The Belt conveyors used in the computer numerical control (CNC) machining firms, remove the metal chips falling from the machine. A machine shop is operated on a small scale certainly has limitations to adopt these chip removal systems economically and precisely. In order to simplify the process, decided to develop an efficient and economical solution for the chip removal process. The spring type chip conveyor is designed to overcome the problems faced while using a belt conveyor and also to remove the metal chips from the machine in a faster and cheaper rate.

Design of Internal Flow Passage of Internal Chip Removal Drill for Suction Type Internal Chip Removal System

2021 ◽  
Author(s):  
Meng Wang ◽  
Chengyang Xu ◽  
Aili Zou ◽  
Gongdong Wang ◽  
Yiwen wang ◽  
...  
Keyword(s):  
Simulation Method ◽  
Cross Sectional ◽  
Fluent Simulation ◽  
Hole Making ◽  
Runner Design ◽  
Sectional Shape ◽  
Center Angle ◽  
Chip Removal ◽  
Center Distance ◽  
Removal System

Abstract Aiming at the current problem that the cutting chips cannot be automatically recovered in the hole-making process of carbon fiber reinforced resin matrix composites, This article first introduces a new type of drilling chip removal technology system-suction type internal chip removal system, which can timely and effectively discharge the powdery chips generated in CFRP hole processing during cutting; Secondly, in view of the problem of the internal runner design of the internal chip removal drill used in the system, this article conducted the following research: 1) Based on cutting experiments and statistical methods, classify the chips produced in CFRP hole making, and give the chip distribution rules; 2) Secondly, on the basis of fluid mechanics, using FLUENT simulation method, on the basis of defining the center distance and center angle of the inner runner for the design of the internal chip removal drill bit, the center distance and the center angle of the inner runner are given. The influence law of the chip removal center angle and the cross-sectional shape of the internal runner on the chip removal effect of the tool internal runner; 2) Based on fluid mechanics, using FLUENT simulation method, on the basis of defining the center distance of the inner runner and the center angle of the inner runner, the center distance of the inner runner, the center angle and the cross-sectional shape of the inner runner are given to the tool The influence law of the chip removal effect of the internal runner; Finally, a suction type internal chip removal system was built, and the experimental method was used to verify the correctness of the internal runner design of the internal chip removal tool.

Deep-Hole Drilling Negative Pressure Device Injection Process Simulation Analysis Based on Fluent

2014 ◽  
Vol 602-605 ◽  
pp. 680-683
Author(s):  
Zhen Ya Chen ◽  
Xing Quan Shen ◽  
Zhi Jie Xin
Keyword(s):  
Negative Pressure ◽  
Area Ratio ◽  
Cutting Fluid ◽  
Sectional Area ◽  
Deep Hole ◽  
Cross Sectional ◽  
Injection Process ◽  
Injection Coefficient ◽  
Discharge Pressure ◽  
Chip Removal

In the process of DF system machining the small diameter deep hole, the working parameters of negative pressure device has a great influence, including injection coefficient, chip removal of cross-sectional area ratio, discharge pressure, negative pressure number, etc. Injection coefficient has the non-linear proportional relationship with chip removal of cross-sectional area ratio, with the increasing incidence of negative pressure discharge pressure increases, as well as, increasing negative pressure number to improve chip removal have a good effect. Movement patterns of cutting fluid is simulated, energy loss of cutting fluid in the flow is studied, finding curved edge nozzle has better negative effects than straight edge nozzle. The effect of negative pressure pumping crumbs is analyzed, the injection process of negative pressure device is simulated, and the form of the fluid motion in negative pressure nozzle is got based on Fluent, which have a good guide for the actual production and machining.

The Design and Application of the Guide Rod of PROTOS Cigarette Machine

2013 ◽  
Vol 631-632 ◽  
pp. 932-935
Author(s):  
Y.P. Liao ◽  
Z.J. Chen ◽  
Cheng Cheng Fei
Keyword(s):  
Product Quality ◽  
Negative Pressure ◽  
Vacuum System ◽  
Effective Solution ◽  
Effective Operation ◽  
Printing System ◽  
Cigarette Paper ◽  
Guide Ring ◽  
Ensure Product Quality ◽  
Removal System

When the PROTOS cigarette machine for paper printing system is expanding the cigarette paper, it produce a lot of dust which easy to adhere to the ink roller and stamp fonts gap, leading to the cigarette stamp dirty, fuzzy cigarette product quality defects. To solve this problem, a negative pressure vacuum system is installed inside the guide rod of the cigarette paper, which help to discharge the cigarette dust to the dust removal system, and improve guide ring of the guide rod to reducing the friction. The application results show that the negative pressure vacuum is an effective solution to solve the dust floated problem. The unqualified rate reduce from 161.3PPM to 26.1PPM.It improve the effective operation of the device and ensure product quality.

scholarly journals Research on chip removal mechanism of pulse fluid negative pressure in deep hole machining

2021 ◽  
Vol 1748 ◽  
pp. 062014
Author(s):  
Xiao Zhang ◽  
Zhen Dong ◽  
Zhi Bing Zhang ◽  
Fang Ping Yao
Keyword(s):  
Negative Pressure ◽  
Deep Hole ◽  
Removal Mechanism ◽  
On Chip ◽  
Hole Machining ◽  
Chip Removal
Sign in / Sign up

Export Citation Format

Share Document