Challenge

Advanced Sheet Metal Design Using NX Cad Challenge_1_Casing Design

CASING DESIGN

OBJECTIVE

  • To obtain knowledge about the user interface and features of sheet metal application in NXCAD.
  • To design a sheet metal casing in NXCAD and carryout drafting.

INTRODUCTION

  • NX, formerly known as “unigraphics”, is an advanced high-end CAD/CAM/CAE, which has been owned since 2007 by Siemens PLM Software.
  • NX Sheet Metal provides a set of tools within the NX design environment that allows for simple and fast design of sheet metal parts.
  • Sheet Metal is a metal formed by an industrial process into thin, flat pieces. Sheet metal is one of the fundamental forms used in metalworking.
  • The thickness of sheet metal starts from 0.5 mm and goes up to 6 mm. Anything above that is a metal plate. The thin sheet metal is easy to form, while still providing great strength.
  • A casing is a substance or object that covers something and protects it.

DESIGN METHODOLOGY

DESCRIPTION

Here we will discuss tools/features used while designing the casing model:

  1. Tab - It is used to create a base part by drawing a sketch with required thickness.

  1. Normal Cutout - It creates a cutout on the sheet metal using a sketch as reference.

  1. Bend – It is used to bend the tab taking any line and a face as reference. The tab can be bent in any angle.

  1. Flange – Flange is created using any edge as a reference. Variable length and angle flanges can be created.

  1. Break Corner – This feature is applied to make a finish at all the sharp corners.

  1. Unbend – It is used to unbend the previously bended regions.

  1. Holes – By drawing points on the sheet metal, taking those points as reference holes are created.

  1. Dimple – It is used to lift a portion of model inside or outside by creating a sketch.

  1. Bead – This feature is used to stamp into the sheet metal taking any sketch as a reference to increase the stiffness.

  1. Rebend – It is used to rebend the previously unbended regions.

  1. Flat Pattern – This feature is used to obtain a 2D projection of the flat sheet metal.

VIEWS OF THE MODEL

  • Isometric View

  • Front View

  • Side View

  • Top View

DRAWING SHEET

CONCLUSION

  • Casing in NX sheet metal is created by using the given sketches and procedures.
  • Flat pattern of the model is obtained and drafting is done.

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