Week 14 challenge

OBJECTIVE :

The main objective of this project is to understand the fundamentals of GD&T and apply them to the design of a butterfly valve using Siemens NX.

INTRODUCTION:

GD&T stands for Geomentric Dimensioning and Tolerancing .It is a standardized way of communicating information about a product and it is applied to engineering drawings with the set of geomentric symbols and annotation following the standards.

METHODOLOGY:

For this project, the entire design, assembly, and drawing creation is done using the parametric CAD software, Siemens NX.First ,each part is designed in NX ,and a drawing for each is created after which GD&T is applied to the drawing . The approach for the completion of this project is in the methodology flowchart.

PART CREATION:

As in most of the CAD packages,NX also requires base sketches for the part to be designed .The sketch can be first drawn. and the feature can be applied later.Also, the sketch can be created after using the feature command and the sketch can be created within the command .All the parts for this buterfly valve are created in the modeling.environment of NX.

ASSEMBLY CREATION:

Assembly creation in NX is a very simple

The method as it alllows to preselect the joint and to move the components in the assembly process as per the design intent. Most of the mates used for this assembly are the Aligning of axis and touch mates. Are applied somewhere as per the requirement .

APPLICATION OF GD&T:

After each part is designed under the appliction , modeling in NX , the drafting application is chosen to create a drawind is created using the required drawing views ,proper GD&T is applied as per the requirement of various parts Appplication of GD&T in NX is a very simple and effective process because it allows applying any kind of Geomentric Tolerancing symbols and tolerance with a few clicks .The feature control frame and datum can be applied easily as per the requirement followiing the standard.

DESCRIPTION:

All the individual parts designed in NX are described with the process of design drawing creation , and the application of GD&T.

ASSEMBLY OF BUTTERFLY VALVE:

After completing the modeling of various components of a butterfly valve ,all parts ware assembled together using the Seimens NX assembly workbench.

CONCLUSION:

The butterfly valve was successfully designed and GD &T was applied to all parts and the assembly of the buterfly valve .