Computerized Simulation of Enveloping Process for Different Applications

2000 ◽  
Author(s):  
V. I. Goldfarb ◽  
R. V. Voznyuk
Keyword(s):  
Process Simulation ◽  
Gear Tooth ◽  
Cutting Tools ◽  
General Purpose ◽  
Contact Points ◽  
Tool Profile ◽  
Screw Surface ◽  
Gear Contact ◽  
General Purpose Software

Abstract Application domain of the enveloping method is very wide and includes numerous engineering applications. The method has been widely applied for the formation of various surfaces, including gear flanks. So called ‘nondiffferential’ method for enveloping process simulation has been developed; the method makes possible adequate description of the process. The method had laid the foundation for the development of a general-purpose software package which is used for the simulation of screw surface formation by different types of cutting tools, computation of tool profile needed to machine defined screw surface, determination of the profile of a gear tooth machined by a tool with defined geometry, computation of gear contact points coordinates, and other tasks. The computer program is modular in design, with a number of common units for the description of enveloped link geometry, enveloping process simulation, motion description, and units related to the solution of specific applied tasks.

A New Method for Modeling of Cutting Tools Associated With Rolling Axodes

1998 ◽  
Author(s):  
Nicolae Oancea ◽  
Victor G. Oancea
Keyword(s):  
Cutting Tools ◽  
New Method ◽  
Contact Points ◽  
Alternative Method ◽  
Solution Of Equations ◽  
Tool Profile ◽  
Family Of Curves ◽  
Envelope Theory

Abstract Most of the existing methods for determining the profiles of cutting tools that work by wrapping are based on the envelope theory which requires cumbersome analytical formulations associated with the solution of equations not always easy to resolve. This work presents a new alternative method for studying conjugated surfaces associated with rolling axodes. The original meshing surfaces are replaced by a family of curves of substitution which gives a simpler interpretation of the envelope theory. The meshing line and the contact points can be easily determined. An equidistant to the tool profile can be simply calculated which can be very useful in the case of machining with cylindrical abrasive disks. Several examples are shown for rack, shaper and rotational cutters.

UNS T11310

Alloy Digest ◽  
1988 ◽  
Vol 37 (5) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Tool Steel ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose ◽  
Steel Mills

Abstract UNS No. T11310 is the high vanadium type of molybdenum high-speed steel. It is a deep-hardening steel and offers high cutting ability and excellent finishing properties. It is a general-purpose steel for cutting tools and is used in such applications as taps, lathe tools and reamers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on heat treating and machining. Filing Code: TS-490. Producer or source: Tool steel mills.

GUTERL M-2

Alloy Digest ◽  
1981 ◽  
Vol 30 (9) ◽  
Keyword(s):  
Physical Properties ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose ◽  
Good Resistance ◽  
Special Steel ◽  
Steel Corporation ◽  
Circular Saws

Abstract GUTERL M-2 is a molybdenum-tungsten type of high-speed steel with fairly good resistance to decarburization. It is a general-purpose high-speed steel and it provides excellent resistance to abrasion and shock. It is used widely for cutting tools. Among its many applications are hack saws, circular saws, lathe tools, gear cutters, planer tools and wood knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-387. Producer or source: Guterl Special Steel Corporation.

VASCO 8-N-2

Alloy Digest ◽  
1979 ◽  
Vol 28 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose

Abstract VASCO 8-N-2 is a molybdenum high-speed steel containing a low percentage of tungsten. It can be used successfully for a variety of cutting tools; in fact, it is a general-purpose high-speed steel. Its composition represents the first molybdenum high-speed steel to be manufactured and find practical use in the field of cutting tools. Its many uses include drills, milling cutters, lathe tools, blanking dies and special shear blades. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-351. Producer or source: Teledyne Vasco.

Determination of gear tooth friction by disc machine

1991 ◽  
Vol 24 (5) ◽  
pp. 269-275 ◽  
Author(s):  
K.L. Johnson ◽  
D.I. Spence
Keyword(s):  
Gear Tooth

A General-Purpose Software for Menu Design of CAD Projects

1993 ◽  
Author(s):  
Y. C. Pao
Keyword(s):  
Software Package ◽  
Computer Programs ◽  
General Purpose ◽  
Final Report ◽  
Sample Design ◽  
Main Menu ◽  
Sample Application ◽  
User Friendly ◽  
Four Bar Linkage ◽  
General Purpose Software

Abstract A software package MenuCAD has been developed for the general need of designing menu-driven, user-friendly CAD computer programs. The main menu is formatted similar to the major contents in the final report of the design project including Contents, Analysis, Sample Design Cases, Illustrations and Tables, References, and Program Listings. Sub-menus are further divided into items delineating the steps involved in the design. Screen help messages are provided for design of the main menu and sub-menus interactively and for applying the arrow keys on the keyboard to select a sub-menus and a particular item in the sub-menu in order to execute a desired design step. MenuCAD builds the framework, its user has to supplement with a subroutine ExecItem for describing the special features and for directing how each design step should be executed in the project. A CAD design of four-bar linkage project is presented as a sample application of this package.

Grapho-Analytical Determination of the Profile Disc Tool for Manufacturing of Complex Helicoidal Surfaces

2013 ◽  
Vol 837 ◽  
pp. 164-169 ◽  
Author(s):  
Gheorghe Pleşu
Keyword(s):  
Point Of View ◽  
Disc Cutter ◽  
Analytical Determination ◽  
Great Effort ◽  
Numerical Determination ◽  
Projection System ◽  
Tool Profile ◽  
Helicoidal Surfaces ◽  
Helicoidal Surface

Helicoidal surfaces correspond to a cathegory of widely spread surfacesin the technical field. From the point of view of the manufacturing of helicoidal surfaces through the moving of a profile around the helix, the two elements defining such a surface can be distinguished: the profile and the helix. The numerical determination of the profile of the disc type tool drawn on an analytical method with a large number of points [1- (the number reaches even 1500 in some cases) implies a great effort so that the technician can verify the correctness of results, even in the present case when there is the possibility of the numerical determination through the resolution of the inverse problem of the frontal profile of the complex helicoidal surface. In order to facilitate this work and to give the possibility of introducing some new profiles in the projection system, some methods of grapho-analytical determination have been conceived to process the profiles of the complex helicoidal surfaces, as well as the profiles of the helicoidal surfaces for a given tool profile. This paper presents the graphic-analytical determination of the disc tool profile designed to dress the complex helicoidal surfaces. The methods referred to by using the possibilities provided by the programming environment AutoCAD and its development languages allow to determin numerically the profile of the disc-cutter with a high precision, above the precision level required in practice.

A parameterized numerical method for generating discrete helical gear tooth surface allowing non-standard geometry

2008 ◽  
Vol 222 (6) ◽  
pp. 1033-1038 ◽  
Author(s):  
J Hedlund ◽  
A Lehtovaara
Keyword(s):  
Gear Tooth ◽  
Numerical Approach ◽  
Helical Gear ◽  
Tooth Surface ◽  
Tool Profile ◽  
Standard Geometry ◽  
Gear Manufacturing ◽  
Involute Gears ◽  
Gear Geometry ◽  
Tooth Flank

Gear analysis is typically performed using calculation based on gear standards. Standards provide a good basis in gear geometry calculation for involute gears, but these are unsatisfactory for handling geometry deviations such as tooth flank modifications. The efficient utilization of finite-element calculation also requires the geometry generation to be parameterized. A parameterized numerical approach was developed to create discrete helical gear geometry and contact line by simulating the gear manufacturing, i.e. the hobbing process. This method is based on coordinate transformations and a wide set of numerical calculation points and their synchronization, which permits deviations from common involute geometry. As an example, the model is applied to protuberance tool profile and grinding with tip relief. A fairly low number of calculation points are needed to create tooth flank profiles where error is <1 μm.

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