Analysis and Design of a Drill Grinder and Evaluation of Grinding Parameters

1972 ◽  
Vol 94 (4) ◽  
pp. 1157-1163 ◽  
Author(s):  
S. Fujii ◽  
M. F. DeVries ◽  
S. M. Wu
Keyword(s):  
Factorial Design ◽  
Cutting Condition ◽  
Analysis And Design ◽  
Grinding Parameters ◽  
Computer Aided ◽  
Expected Values ◽  
Drill Point ◽  
Geometry Analysis ◽  
Thrust And Torque

A prototype drill grinder was designed and built based on a computer aided drill point geometry analysis. The new grinder controls all essential drill point grinding parameters. The new grinder was evaluated by grinding drills, measuring their point geometry parameters, and comparing these measurements with their expected values. The effects of five parameters, consisting of three grinding and two cutting condition parameters, on the drill thrust and torque are determined by an experiment using a two-level factorial design.

Computer Aided Design and Grinding for Helical Drill Points

2008 ◽  
Vol 389-390 ◽  
pp. 205-210 ◽  
Author(s):  
Ping Zou ◽  
Xin You Li ◽  
Yu Tang ◽  
Xu Lei Yang
Keyword(s):  
Computer Aided Design ◽  
Simulation System ◽  
Geometric Parameters ◽  
Aluminum Sheet ◽  
Design Parameters ◽  
Drilling Performance ◽  
Grinding Parameters ◽  
Computer Aided ◽  
Drill Point ◽  
Aided Design

In this paper, a Drill Point Simulation System (DPSS) which is being developed at Northeastern University is presented. By means of DPSS, the geometric models of the helical drill points were shown after inputting their design parameters. Then, the grinding parameters of the helical drill points were produced. According to the grinding parameters, the helical drill points were ground by the SD helical drill point grinder which was developed at Northeastern University. Furthermore, drilling tests were performed on aluminum sheet workpieces to investigate drilling performance of the helical drill points. In addition, the relationships between the geometric parameters of helical drill points and their grinding parameters also were derived.

Research for Tool Face Mathematical Model of Multi-Facet Drills Used in Processing High Manganese Steel

2011 ◽  
Vol 299-300 ◽  
pp. 936-939
Author(s):  
Li Xu ◽  
Liang Yang ◽  
Zhi Hui Shi
Keyword(s):  
Mathematical Model ◽  
Manganese Steel ◽  
Design Parameters ◽  
High Manganese ◽  
High Manganese Steel ◽  
Drilling Tool ◽  
Grinding Method ◽  
Grinding Parameters ◽  
New Type ◽  
Drill Point

The multi-facet drill shows good performance during materials are difficultly machined. However, for a new type of the drilling point, the grinding has been the main problem that restricts its application. To properly grinding the drill point confirms the design parameters, the relationship between design parameters and grinding parameters must be resolved. The mathematical model is the key to solve this problem. In this paper, according to the design of the high manganese steel drilling tool, a mathematical model has been established by the plane grinding method to solve grinding parameters, and to achieve improved mechanical grinding of drill point.

Prediction of Thrust and Torque for Multifacet Drills (MFD)

1994 ◽  
Vol 116 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Horng-Tsann Huang ◽  
Cheng-I Weng ◽  
Chao-Kuang Chen
Keyword(s):  
Analytical Model ◽  
Theoretical Method ◽  
Cutting Mechanics ◽  
Drilling Performance ◽  
Proposed Model ◽  
Wide Range ◽  
Drill Point ◽  
Thrust And Torque

A multifacet drill (MFD), developed around 1953, has been used to improve the drilling performance by modifying the drill point geometry. A theoretical method for predicting the thrust and torque for an MFD is developed on the basis of the cutting mechanics for a conventional drill. Experiments show the proposed model is quite satisfactory for a wide range of applications. Also, from the analytical model the effects of the major features of the drill point geometry on thrust and torque can be studied.

Moving Aerial Base Station Networks: A Stochastic Geometry Analysis and Design Perspective

2019 ◽  
Vol 18 (6) ◽  
pp. 2977-2988 ◽  
Author(s):  
Saeede Enayati ◽  
Hamid Saeedi ◽  
Hossein Pishro-Nik ◽  
Halim Yanikomeroglu
Keyword(s):  
Stochastic Geometry ◽  
Base Station ◽  
Analysis And Design ◽  
Design Perspective ◽  
Geometry Analysis
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