Graphical Method in CAD Environment for Profiling End Mill Tool

2015 ◽  
Vol 809-810 ◽  
pp. 787-792 ◽  
Author(s):  
Camelia Lǎcrǎmioara Popa
Keyword(s):  
Graphical Method ◽  
Screw Compressor ◽  
End Mill ◽  
Design Environment ◽  
Disk Cutter ◽  
Revolution Surfaces ◽  
Helical Flute ◽  
Mill Cutter ◽  
Graphic Solution

The actives surfaces of screw compressors are helical surfaces, cylindrical and uniform pitch. The generation of helical surfaces can be done using tools bordered by revolution surfaces (as end mill cutter, or disk cutter). The shaping of generating tools is based on fundamentals theorem of the enveloping surfaces. This paper consists to propose a graphic solution, using specific tools of the design environment AUTOCAD, to problem concerning the shaping end mill tool which generates the helical flute of male rotor component of screw compressor. The algorithm has been developed based on a complementary theorem - "The theorem of substituting circles family".

Graphic Method Profiling of the End Mill Cutter Generating the Screw Compressor Rotor

2014 ◽  
Vol 658 ◽  
pp. 123-128 ◽  
Author(s):  
Camelia Lacramioara Popa ◽  
Viorel Popa
Keyword(s):  
Screw Compressor ◽  
Graphic Method ◽  
End Mill ◽  
Helical Channel ◽  
Compressor Rotor ◽  
Mill Cutter ◽  
Front Section

Helical rotors, components of screw compressors have different structural shapes: rotors circular front section, rotors elliptic front section or asymmetric rotors. Manufacturing rotors involves profiling a tool bordered by a revolution surface, enveloping of each helical channel. This paper proposes a method developed in AutoCAD, in order to determine the profile of end mill cutter which generates the helical channel. Graphic method is based on the principle of complementary theorems' "Substitute Circles Family Method" component of envelope surfaces theory.

Comparative Analytical Solutions to the Problem of Profiling the End Mill Cutter to Generate Helical Surfaces

2015 ◽  
Vol 809-810 ◽  
pp. 39-44
Author(s):  
Gabriel Frumuşanu ◽  
Virgil Teodor ◽  
Nicolae Oancea
Keyword(s):  
Minimum Distance ◽  
Symmetry Axis ◽  
The Other ◽  
Numerical Representation ◽  
Classical Theorem ◽  
End Mill ◽  
Helical Surface ◽  
Constant Pitch ◽  
Revolution Surfaces ◽  
Mill Cutter

In this paper, we present, comparatively, two analytical methods for profiling the tools delimited by revolution surfaces, used to generate helical surfaces with constant pitch. The first method lays on a complementary theorem used for tools profiling, namely the Minimum distance theorem. A specific algorithm for applying it has been developed, in order to profile the tools delimited by revolution surfaces, which generates helical surfaces with constant pitch by enwrapping. The methodic is referring, here, to a tool whose symmetry axis is incident and, at the same time, normal to the helical surface axis – the end mill cutter. The other analytical method here applied grounds on Nikolaev classical theorem. We also present an example of application for both methods, in the case of profiling the end mill cutter used to generate a helicoid with circular frontal generatrix. The tool axial sections are determined and compared in a numerical representation.

Influence of the CAM Parameters and Selection of End-Mill Cutter when Assessing the Resultant Surface Quality in 3D Milling

2014 ◽  
Vol 474 ◽  
pp. 267-272 ◽  
Author(s):  
Michal Fabian ◽  
Peter Ižol ◽  
Dagmar Draganovská ◽  
Miroslav Tomáš
Keyword(s):  
Ball Milling ◽  
Surface Quality ◽  
End Mill ◽  
Machined Surface ◽  
Machined Surface Quality ◽  
Different Types ◽  
Mill Cutter ◽  
Milling Tools ◽  
Selection Of

The paper deals with the effects of CAM data needed to produce desired quality of shaped surfaces in forming dies making. In general, the input CAM data have strong influence to the final surface quality. The shaped surfaces 3D milling has been modeled as end ball milling of the surfaces with defined inclination. The end ball milling is the most common way to finish shaped surfaces. Directions of the milling tools motion and applied cutting conditions have been used to simulate data when setting milling strategies. The resultant machined surface quality has been identified in terms of the surface roughness. The paper introduces recommendations applicable to the programming of the different types of milling strategy when producing form surfaces.

The Investigation of Prediction Surface Roughness from Machining Forces in End Milling Processes

2011 ◽  
Vol 486 ◽  
pp. 91-94 ◽  
Author(s):  
Jabbar Abbas ◽  
Amin Al-Habaibeh ◽  
Dai Zhong Su
Keyword(s):  
Surface Roughness ◽  
End Milling ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Irregular Waves ◽  
Depth Of Cut ◽  
End Mill ◽  
Machined Surface ◽  
Machining Forces ◽  
Mill Cutter

Surface roughness is one of the most significant parameters to determine quality of machined parts. Surface roughness is defined as a group of irregular waves in the surface, measured in micrometers (μm). Many investigations have been performed to verify the relationship between surface roughness and cutting parameters such as cutting speed, feed rate and depth of cut. To predict the surface produced by end milling, surface roughness models have been developed in this paper using the machining forces by assuming the end mill cutter as a cantilever beam rigidly or semi- rigidly supported by tool holder. An Aluminium workpiece and solid carbide end mill tools are used in this work. Model to predict surface roughness has been developed. Close relationship between machined surface roughness and roughness predicted using the measured forces signals.

Study of the Enwrapping Profiles Associated with Rolling Centrodes by the Minimum Distance Method — Graphical Solution Developed in the CATIA Design Environment

2014 ◽  
Vol 656 ◽  
pp. 181-191
Author(s):  
Virgil Teodor ◽  
Silviu Berbinschi ◽  
Nicuşor Baroiu ◽  
Nicolae Oancea
Keyword(s):  
Minimum Distance ◽  
Graphical Method ◽  
Graphical Methods ◽  
Graphical Solution ◽  
Design Environment ◽  
Distance Method ◽  
Basic Theorem ◽  
Graphical Design

The issue of enwrapping surfaces study can be solved using the basic theorem Olivier or Gohman. Also, are known and used some specific theorems for the study of the enveloping of the helical surfaces. More, they were developed and applied complementary theorems as: “the minimum distance” method or “the inplane generating trajectories family”. The development of the graphical design environment allows the approach of the issue of surface enwrapping using the capabilities of this software. In this paper it is proposed a methodology for application of the “minimum distance method” for generation of the surface associated with a pair of rolling centrodes using various tools: rackgear tool and gear shaped tool. They are presented applications of this graphical method and the results. This proves the quality of the proposed method. The graphical methods have the advantages that are fast, rigorous and intuitive.

scholarly journals Investigation on End-mill Cutter Location Based on Constant Feed-speed Vector at Cutting Point with a Five-axis Machining Center

2010 ◽  
Vol 76 (8) ◽  
pp. 912-917 ◽  
Author(s):  
Toshiki HIROGAKI ◽  
Eiichi AOYAMA ◽  
Keiji OGAWA ◽  
Tsugutoshi KAWAGUCHI ◽  
Takahiro HORIUCHI
Keyword(s):  
Feed Speed ◽  
End Mill ◽  
Machining Center ◽  
Mill Cutter ◽  
Five Axis ◽  
Cutting Point
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