Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

Title         :   Sheet metal  box assembly design   using Siemens NX

Objective :   Design  of  box assembly using Siemens NX

Introduction :

Designing  a box assembly   in sheet metal using Siemens NX  software involving creating  a three dimensions  representation of a box .

Box assembly it consist of casing surface  with the four outer wall  area with 3mm blend radius has  provided and flange  operation can be used  to make  side  wall of the box assembly .

Hemming operation can be used  to  make  a hinges over the surface  the body Siemens NX  sheet metal design   capability  streamline the process   of creating the box  assembly  using sheet  metal  component.

 

Design Methodology

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<![endif]> Create a sketch 50mm *200 mm length and make  tab operation with 3 mm thickness <![if !mso]>

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<![endif]> Create a flange in both side of the edge of 200 mm length  with same thickness <![if !mso]>

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<![endif]> Taking  the center of the side flange and make a  closed hemming  process  with the both the  edge of the flange and   do the  mirror  operation <![if !mso]>

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<![endif]> Create a  side  wall and  create the sketch with  80*30mm length  and dimple  operation on the surface of the sheet metal <![if !mso]>

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<![endif]> After the creating  a flange  it make a corner option  with 3 mm in all the side of the flange <![if !mso]>

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<![endif]> After  creating a dimple  create the circle with 4mm radius  and apply circular bead operation  . <![if !mso]>

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<![endif]> While creating a hinges first create the sketch on side wall 50mm*20mm length with 3mm thickness and create a flange of 20mm.                  <![if !mso]>

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<![endif]> After flange apply the closed loop hemming operation over the flange unbend the flange for creating a  cut . <![if !mso]>

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<![endif]> After creating a a normal  cut operation and rebend the  surface  and do  mirror  operation along y axis                                                             xzc       <![if !mso]>

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<![endif]> Create a sketch on unbend surface  with 90mm*10mm length and normal cut operation . <![if !mso]>

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Description

Tab    : Create a sketch a with a length  200mm*50mm  and make the tab  operation with 3 mm thickness/

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Flange command :

In  flange  command the  is used to make the outer boundary and  do the hemming operation of the side wall of the flange length with 19 mm .

 

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Hemming

In open hemming process the can made with bend  radius of   5 mm in both the side of  flange .

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Unite  Command :

<!-- [if gte vml 1]> <![endif]--><!-- [if !vml]--><!--[endif]-->In unite command  both the surface  has to be connected with the surface with the unite command as a single solid body .

 

 

Dimple command  :

Create the sketch on  the surface on the side of the flange  with 60mm *50mm length  on it with the help of dimple command we  have create the embosss from the sketch and mirror it both the direction .

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Bead  command  :

From the bottom surface of box it create the sketch with  a  circle of 5mm dia  and applied the circular bead option .

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Hemming :

We have created a closed hemming operation on the top surface of the   flange with 5mm length .

 

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Flange & hemming  command

It create a sketch   rectangle section and applying flange with 25mm length  with 45 degree angle after that crate  a closed loop hemming on the edge of the flange .

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Normal cut command ;

After  creating a hemming then unbend the sheet metal and create a sketch in rectangle shape to  make  slot in between the two hemming and do mirror operation   

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Flange  creation :

I  have created  a flange of length 80mm*40mm length with 210mm offset surface   from the y  axis

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FRONT  view <!-- [if gte vml 1]> <![endif]--><!-- [if !vml]--><!--[endif]-->

 

TOP  VIEW :

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 SIDE VIEW <!-- [if gte vml 1]> <![endif]--><!-- [if !vml]--><!--[endif]-->  

ISOMETRIC VIEW

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