Creating a Swept Blend Feature

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File → New
Ken Youssefi
Creating a New Part
Mechanical Engineering Dept., SJSU
1
Pro/E Screen
File management
Toolbar
Part
management
area
Model Display Datum Display
Toolbar
Toolbar
View
management
Toolbar
Datum Creation
Toolbar
3 Principal
Orthographic
planes
Work Screen
Feature Creation
Toolbar
Feature Creation Dashboard
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Default Toolbar
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Model Display
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Pro/E Mouse Functions
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Default Datum Planes in Pro/E
Three Standards Principal Orthographic Planes
Top
Front
Right
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating Solids
Sketched Features - (extrusions, revolves, sweeps, blends,
..) These features require a two-dimensional drawing (cross
section) which is then manipulated into the third dimension.
Although they usually use existing geometry for references,
they do not specifically require this. These features will
involve the use of an important tool called Sketcher.
 Select a datum plane to draw.
 Create a 2D sketch.
 Create a feature from the sketch
by extruding, revolving,
sweeping, ….
Ken Youssefi
Mechanical Engineering Dept., SJSU
Extrude
Revolve
Sweep
Blend
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Creating Solids
Placed Features - (holes, rounds, shells, ...) These are
features that are created directly on existing solid
geometry. Examples are placing a hole on an existing
surface, or creating a round on an existing edge of a part.
Hole
Shell
Rib
Draft
Round
Chamfer
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Edit Toolbar
The final group of buttons is used for editing and
modifying existing features.
Mirror
Merge
Trim
Pattern
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Implicit Constraints in Sketcher
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Example of Implicit Constraints
• vertical lines
• horizontal lines
• perpendicular lines
• tangency
• equal length lines
• equal radius
• vertical alignment
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Setting Sketch Orientation
Sketch plane - the plane on which you will draw and your view is always
perpendicular to the sketch plane.
The Orientation option list in the dialog window (Top, Bottom, Left, Right)
refers to directions relative to the computer screen, as in “TOP edge of the
screen” or “BOTTOM edge of the screen” and so on. This orientation must be
combined with a chosen reference plane (which must be perpendicular to the
sketch plane) so that the desired direction of view onto the sketching plane is
obtained.
Ken Youssefi
Mechanical Engineering Dept., SJSU
12
Setting Sketch Orientation - Example
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Sketcher
Ken Youssefi
Mechanical Engineering Dept., SJSU
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The Sketcher Toolbar
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Sketcher Toolbar Flyout Buttons
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Weak vs. Strong Dimensions
A dimension created by Sketcher
is called “weak” and is shown in
gray. Strong dimensions, on the
other hand, are those that you
create.
Sketch with weak dimensions
You can make a strong dimension in any of three ways:
1. Modify the value of a weak dimension
2. Create a dimension from scratch by identifying entities in the sketch
and placing a new dimension on the sketch
3. Select a weak dimension and promote it to strong using the RMB
pop-up menu
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Over and Under Constrained Sketch
If there is not enough information to define the drawing (it
is underconstrained), Sketcher will create the necessary
and sufficient missing dimensions.These are the weak
dimensions.
If Sketcher finds the drawing is overconstrained (too
many dimensions or constraints) it will first try to solve
the sketch by deleting one or more of the weak
dimensions (the ones it made itself earlier).
However, if Sketcher still finds the drawing
overconstrained, it will tell you what the redundant
information is (which may be dimensions or constraints),
Ken Youssefi
Mechanical Engineering Dept., SJSU
18
Extrude Command in Pro/E
Extrude Icon
Extrude
The Extrude Dashboard
Select Placement to define the
sketch plane
Blind depth
Thicken Sketch
Depth options
Remove material (cut)
Surface
Solid
Flip direction
Ken Youssefi
Mechanical Engineering Dept., SJSU
19
Extrude Command in Pro/E
Extrude Dashboard
Surface
Thicken Sketch
Extruded surface
Extrude from the sketch by
a specified value
Extrude on both sides of
the sketch, equal amount.
Extrude to selected point,
curve, plane or surface
A Thick extruded solid
Ken Youssefi
Mechanical Engineering Dept., SJSU
Depth Spec options
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Creating an Extruded Cut
1.
Select a plane to sketch on, cannot
sketch on a curved surface.
2.
Sketch the curve
3.
Select Remove Material button
Remove Material
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating an Extruded Cut
Material
Removal
Side
Material removal arrow pointing to the right.
Material removal arrow pointing to the left.
Ken Youssefi
Mechanical Engineering Dept., SJSU
Common dashboard controls
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Creating a Hole (placed feature)
Straight
Sketched
Hole types
Standard hole
countersink
Standard hole
counterbore
Thru next
Blind
Thru all
Thru until
Depth options
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Hole (placed feature)
Hole placement:
linear or radial
Standard threaded hole option
The Straight hole
dashboard (default)
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Chamfer and Fillet (Round)
Chamfer
Dashboard
Round
Chamfer
Ken Youssefi
Mechanical Engineering Dept., SJSU
Round
Dashboard
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Creating a Revolved Feature
Extrude
Revolve
•
Sketch a 2D profile
•
Sketch a centerline
•
Revolve the sketch
around the centerline
Ken Youssefi
Mechanical Engineering Dept., SJSU
26
Creating a Sweep Feature
(Protrusion)
Trajectory
Section
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Sweep Feature (Cut)
Create an entity from an edge
Pick the top surface of the table top to sketch, insert the two edges
of the table into the sketch plane for reference, erase after finished.
Trajectory
Sketch the sweep trajectory (guide sweep)
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Sweep Feature (Cut)
select Insert → Sweep → Cut, and choose the Select Traj. option
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Sweep Feature (Cut)
Sketch the cut profile on the back surface f the table top
Back surface
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Swept Blend Feature
Insert → Swept Blend
Sweep type
Swept Blend Dashboard
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Swept Blend Feature
The Normal to Trajectory option keeps each of the
feature’s cross sections normal to the trajectory of the
feature. Each section is created normal to a vertex of the
trajectory or normal to a datum point on the trajectory. It
requires the definition of a trajectory and the definition of
one or more sections
The Normal to Projection option keeps the feature’s cross
sections normal to a second trajectory. Each section of the
feature is created perpendicular to the normal trajectory. The
option requires the definition of a sweep trajectory, a normal
trajectory, and two or more sections.
Constant Normal Direction option keeps the feature’s
cross sections normal to a selected planar pivot plane, edge,
curve, or axis. Each section of the feature is created normal
to the selected pivot plane. It requires the definition of a
trajectory a normal plane and the definition of one or more
Mechanical Engineering Dept., SJSU
Ken Youssefi
sections.
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Creating a Swept Blend Feature - Examples
The Normal to
Projection
Ken Youssefi
The Normal to Trajectory
Mechanical Engineering Dept., SJSU
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Creating a Swept Blend Feature - Examples
Sketch the
trajectory
1
2
3
4
5
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Swept Blend Feature - Examples
Select Insert → Swept Blend
Swept Blend dashboard
Select the trajectory, if there is only one sketch,
it will be selected automatically
Select Normal To Trajectory (default)
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Swept Blend Feature - Example
2
1
3
4
5
Select a point and sketch the cross section
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Select Insert when
finished with the
sketch
Follow the same steps to draw the other
sections
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Variable-Section Swept Feature
Used to create complex geometric shapes. The option sweeps a section
along one or more trajectories.
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Datum Plane Tangent to a Curve at a Point
Select Datum Plane
Select the curved plane
and the Tangent option
A
Ken Youssefi
Mechanical Engineering Dept., SJSU
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Creating a Datum Plane Tangent to a Curve at a Point
Select the end point of the
line, the datum plane is
tangent to the cylinder at
point A.
Ken Youssefi
Mechanical Engineering Dept., SJSU
40
Sketch on the created
datum plane
Extrude and cut
Ken Youssefi
Mechanical Engineering Dept., SJSU
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