Combine Bodies

You can combine multiple solid bodies to create a singled-bodied part or another multibody part. There are three ways to combine multiple solid bodies:
Add. Combines solids of all selected bodies to create a single body.
Subtract. Removes overlapping material from a selected main body.
Common. Removes all material except that which overlaps.
To use the Add or Common operation type:
Click Combine on the Features toolbar, or click Insert, Features, Combine.
The Combine1 PropertyManager appears.
Under Operation Type, click Add or Common.
Under Bodies to Combine, select the bodies in the graphics area, or select the bodies from the Solid Bodies folder in the FeatureManager design tree.
Click Show Preview to preview the feature.
Click OK .
To use the Subtraction operation type:
Click Combine on the Features toolbar, or click Insert, Features, Combine.
The Combine1 PropertyManager appears.
Under Operation Type, click Subtract.
Under Main Body, select the body to keep from the graphics area for Solid Body , or select the body from the Solid Bodies folder in the FeatureManager design tree.
Under Bodies to Subtract, select the bodies whose material you want to remove for Solid Bodies .
Click Show Preview to preview the feature.
Click OK .


For the body intersection multibody technique, you use the Combine feature and its Common option. Body intersection is a quick way to create complex parts with very few operations, which can result in faster performance. The operation takes multiple solid bodies that overlap one another and leaves only the intersecting volumes of the bodies. For most models that can be represented fully by two or three drawing views, this technique can be used by intersecting either two or three extruded solids. The extrusion sketches are the solid lines represented in the two or three views. The following example shows this technique with the intersection of two extrusions.
Front
Top
Isometric
To create the part described above, you begin with the base part:
And then select the Common option of the Combine feature to use only the overlapping material of the base part.
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COSMOSXpress

COSMOSXpress offers an easy-to-use first pass stress analysis tool for SolidWorks users. COSMOSXpress can help you reduce cost and time-to-market by testing your designs on the computer instead of expensive and time-consuming field tests.
For example, you may want to examine the effects of a force applied to the faucet. COSMOSXpress simulates the design cycle and provides stress results. It also shows critical areas and safety levels at various regions in the faucet. Based on these results, you can strengthen unsafe regions and remove material from overdesigned areas.
Critical regions
Deformed shape
COSMOSXpress uses the same design analysis technology that COSMOSWorks uses to perform stress analysis. More advanced analysis capabilities are available within the COSMOSWorks line of products. The wizard interface of COSMOSXpress guides you through a five step process to specify material, restraints, loads, run the analysis, and view the results.
The accuracy of the results of the analysis depend on material properties, restraints, and loads. For results to be valid, the specified material properties must accurately represent the part material, and the restraints and loads must accurately represent the part working conditions.
COSMOSXpress supports the analysis of solid, single-bodied parts only. It does not support the analysis of assemblies, surface models, or multibody parts.
After building your design in SolidWorks, you may need to answer questions like:
Will the part break?
How will it deform?
Can I use less material without affecting performance?
In the absence of analysis tools, these questions can only be answered by performing expensive and time-consuming product development cycles. A product development cycle typically includes the following steps:
Build your model in the SolidWorks CAD system.
Prototype the design.
Test the prototype in the field.
Evaluate the results of the field tests.

Modify the design based on the field test results.
This process continues until a satisfactory solution is reached. Analysis can help you accomplish the following tasks:
Reduce cost by testing your model using the computer instead of expensive field tests.
Reduce time to market by reducing the number of product development cycles.
Optimize your designs by quickly simulating many concepts and scenarios before making a final decision, giving you more time to think of new designs.
Stress Analysis
Stress or static analysis calculates the displacements, strains, and stresses in a part based on material, restraints, and loads. A material fails when the stress reaches a certain level. Different materials fail at different stress levels. COSMOSXpress uses linear static analysis, based on the Finite Element Method, to calculate stresses. Linear static analysis makes several assumptions to calculate stresses in the part.
Finite Element Method
The Finite Element Method (FEM) is a reliable numerical technique for analyzing engineering designs. FEM replaces a complex problem with many simple problems. It divides the model into many small pieces of simple shapes called elements.
CAD model of a bracket
Model subdivided into small pieces (elements)
Elements share common points called nodes. The behavior of these elements is well-known under all possible support and load scenarios. The motion of each node is fully described by translations in the X, Y, and Z directions. These are called degrees of freedom (DOFs). Analysis using FEM is called Finite Element Analysis (FEA).
A tetrahedral element. Red dots represent the element's nodes. Element edges can be curved or straight
COSMOSXpress formulates the equations governing the behavior of each element taking into consideration its connectivity to other elements. These equations relate the displacements to known material properties, restraints, and loads.
Next, the program organizes the equations into a large set of simultaneous algebraic equations. The solver finds the displacements in the X, Y, and Z directions at each node.
Using the displacements, the program calculates the strains in various directions. Finally, the program uses mathematical expressions to calculate stresses.
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Circle

You can sketch a center-based circle with the Circle tool, or you can sketch a perimeter-based with the Perimeter Circle tool.
To create a center-based circle:
Click Circle on the Sketch toolbar, or click Tools, Sketch Entities, Circle.
The pointer changes to .
Click in the graphics area to place the center of the circle.
Move the pointer and click to set the radius.
Click OK .

To create a perimeter-based circle:
Click Perimeter Circle on the Sketch toolbar, or click Tools, Sketch Entities, Circle.
The pointer changes to .
Click in the graphics area to place the perimeter.
Drag left or right to sketch the circle.
When you finished dragging, the pointer is displayed.
Right-click to set the circle.
Click OK .
To modify a circle by dragging:
In an open sketch:
Increase the perimeter by dragging its edge away from its center point.
Decrease the perimeter by dragging its edge toward its center point.
Move the circle by dragging its center point.
To change the properties of a circle:
In an open sketch, select the circle and edit its properties in the Circle
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Extended Surface

Surfaces OverviewSurfaces are a type of geometry that can be used to create solid features. Surface tools are available on the Surfaces toolbar. You can create surfaces by these methods:Insert a planar surface from a sketch or from a set of closed edges that lie on a planeExtrude, revolve, sweep, or loft from sketchesOffset from existing faces or surfacesImport a fileCreate mid-surfacesRadiate surfacesYou can modify surfaces in the following ways:ExtendTrim existing surfacesUntrim surfacesFillet surfacesRepair surfaces using Filled SurfaceMove/Copy surfacesDelete and patch a faceKnit surfaces

You can use surfaces in the following ways:Select surface edges and vertices to use as a sweep guide curve and path.Create a solid or cut feature by thickening a surface.Extrude a solid or cut feature with the end condition Up to Surface or Offset from Surface.Create a solid feature by thickening surfaces that have been knit into a closed volume.Replace a face with a surface You can extend a surface by selecting an edge, multiple edges, or a face.To extend a surface:Click Extended Surface on the Surfaces toolbar or click Insert, Surface, Extend.In the PropertyManager:Under Edges/Faces to Extend, select one or more edges or faces in the graphics area for Selected Face/Edges .For edges, the surface extends along the plane of the edge. For faces, the surface extends along all edges of the face except those connected to another face.You can propagate extended surfaces to tangent faces by clicking the Propagate callout which appears only if you select edges. Select an End Condition type:Distance. Extends the surface by the value you specify in Distance .Up to point. Extends the surface to the point or vertex selected in the graphics area for Vertex .Up to surface. Extends the surface to the surface or face selected in the graphics area for Surface/Face .Select an Extension Type:Same surface. Extends the surface along the geometry of the surface.Linear. Extends the surface tangent to the original surface along the edges.Extend edge using Same surface as the Extension Type.Extend edge using Linear as the Extension Type.Extend surface using the face as the Edges/Faces to Extend and Same surface as the Extension Type.Click OK .
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text extrude

You can sketch text on the face of a part and extrude or cut the text. The text can be inserted on any set of continuous curves or edges, including circles or profiles made up of lines, arcs, or splines.
If the curve is a sketch entity, or a set of sketch entities, and the sketch text is in the same sketch as the curve, convert the sketch entities to construction geometry.
To sketch text on a part:
Click a face of a part.
Click Text on the Sketch toolbar, or click Tools, Sketch Entities, Text.

To create a profile for placing the text, sketch a circle or a continuous profile from lines, arcs, or splines in a sketch, close the sketch, then open another sketch for the text.
In the graphics area, select an edge, curve, sketch, or sketch segment.
The selected item appears under Curves .
In the PropertyManager, under Text, type the text to display.
The text appears in the graphics area as you type.
Set the properties in the Sketch Text PropertyManager as necessary.
Click OK .
With the sketch still open, Extrude or Cut the text.
To edit sketch text:
In an open sketch, right-click the text (the pointer changes to when it is over the sketch text) and select Properties.
Edit the text and its properties in the Sketch Text PropertyManager as necessary.
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Split feature

Use the Split feature to create multiple parts from an existing part. You can create separate part files, and form an assembly from the new parts. You can split a single part document into a multibody part document.
To split a part:
Click Split on the Features toolbar, or click Insert, Features, Split.
In the PropertyManager, under Trim Tools, select one or more of the following for Trimming Surfaces :
Reference planes (Planes extend infinitely in all directions.)
Planar model faces (Faces extend infinitely in all directions.)

Original Part
Revised Original Part
New Part
Sketches (Sketches extrude through all in both directions.)
Original Part
Revised Original Part
New Part
Reference surfaces and non-planar model faces (These do not extend their boundaries. Internal holes on reference surfaces or non-planar model faces are closed when splitting the part.)
Original Part
New Parts
Click Cut Part.
Split lines appear on the part, showing the different bodies formed by the split.
Callout boxes appear in the graphics area for up to 10 bodies at one time. Click Next 10 or Previous 10 to scroll through all the callout boxes for a part.
Under Resulting Bodies, select the bodies to save under , then select one of the following for Resultant bodies state:
Show bodies. All bodies appear in the graphics area. All of the bodies are listed in the FeatureManager design tree under Solid Bodies, and the icons are filled .
Hide bodies. Only the bodies that you did not split appear in the graphics area. Bodies that are selected are hidden. All the split bodies are listed in the FeatureManager design tree under Solid Bodies, but the icons for hidden bodies are blank .
Consume bodies. Removes the body from the part. Consumed bodies are not listed in the FeatureManager design tree under Solid Bodies.
Double-click the body name under File, type a name for the new part in the dialog box, then click Save.
The new part name appears in the Resulting Bodies list and in the callout box. The bodies that you do not save are not split. They remain with the original part.
If you clear the check box for a split part after you save it, that part is no longer saved as a separate entity. It remains with the original part.
You can choose the same name for two different bodies if they are identical. If the bodies are not identical, the software does not let you choose the same name.
Click OK .
New Parts
The new parts are derived; they contain a reference to the parent part. Each new part contains a single feature named Stock--n->.
If you change the geometry of the original part, the new parts also change.
With multibody parts, the various split parts are listed in the FeatureManager design tree under Solid Bodies.
Original Part
The original part contains all its original features plus a new feature called Split.
If you selected Hide bodies or Consume bodies under Resultant bodies state, the solid body displayed in the graphics area is the original solid body minus the new parts. If all bodies in the original part were saved as split bodies, no solid body is displayed. To see the original solid body, move the rollback bar in the FeatureManager design tree above the split feature or suppress the split feature.
If you delete the split feature in the original part, the new parts still exist, but the status of the external reference in the new parts is dangling.
You can also save solid bodies after you split the model using the Save Bodies feature. This enables you to save the bodies from a split part to a different folder or with different names to the same folder. You can also create an assembly from the split parts.
To save bodies from multibody parts:
Click Insert, Features, Save Bodies.
Select the bodies to save in the graphics area, or under in Resulting Parts.
The callouts display the default path, file names, and location of the multibody part.
Under Resulting Parts, double-click each file name under File to open the Save As dialog box. You can select a new location and file name for each part.
To create an assembly, under Create Assembly, click Browse, select a folder to save the assembly as SplitAssembly type (*.sldasm), and type a file name.
Click OK .
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Sketching a Boss

To create additional features on the part (such as bosses or cuts), you sketch on the model faces or planes, then extrude the sketches.

You sketch on one face or plane at a time, then create a feature based on one or more sketches.

Click Hidden Lines Removed on the View toolbar.

Click Extruded Boss/Base on the Features toolbar.

Move the pointer over the front face of the part.

The pointer changes to , and the edges of the face become highlighted to show that the face is available for selection.

Select the front face of the part.
A sketch opens on the front face of the part. The Sketch toolbar commands appear in the CommandManager.
Sketching a Boss (continued)
Click Circle on the Sketch toolbar.
The pointer changes to .
Click near the center of the face and move the pointer to sketch a circle. Click again to complete the circle.
Dimensioning and Extruding the Boss
To establish the location and size of the circle, add the necessary dimensions.
Click Smart Dimension on the Sketch toolbar.
Select the top edge of the face, select the circle, then click a location for the dimension.
A closer look at dimensioning
Double-click the dimension, set the value to 60 in the Modify dialog box, and click to dimension the circle to the top edge of the face.
Repeat the process to dimension the circle to the side edge of the face. Set this value to 60.
Dimensioning and Extruding the Boss (continued)
Still using Smart Dimension , select the circle to dimension its diameter. Move the pointer around to see the preview for the dimension.
When the dimension is aligned horizontally or vertically, it appears as a linear dimension; if it is at an angle, it appears as a diameter dimension.
Click a location for the diameter dimension. Set the diameter to 70. Add the two other dimensions as shown.
The circle turns black, and the status bar indicates that the sketch is fully defined.
Click Exit Sketch on the Sketch toolbar.
The Extrude PropertyManager appears.
In the PropertyManager, under Direction 1, set Depth to 25, leave the other items at the defaults, and click OK to extrude the boss feature.
Extrude2 appears in the FeatureManager design tree.

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Please see below to simple application

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