Solid Works Training Report

8/10/2019 Solid Works Training Report

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1 Training Report

on

SolidWorks, 3D-Model Designing

Submitted to

Guru Premsukh Memorial College of Engineering

In Partial Fulfilment of the requirements for the award of the Degree ofBachelor of Technology

Discipline

Mechanical & Automation Engineering

(7thSemester)

Submitted by

Shubhan Singh

00513103611


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Content

1. Course completion Certificate from CADD Centre

2. Acknowledgement

3. History of Designing & Part Modeling

4. Introduction to SolidWorks

4.1.Sketches

4.1.1.1. Origin

4.1.1.2. Planes

4.2.Dimensions

4.2.1.1.

Driving Dimensions

4.2.1.2. Driven Dimensions

4.2.1.3. Sketch Definition

4.3.Relations

4.3.1.1. Sketch Complexity

4.4.Faeatures

4.5.Assemblies

4.6.

Drawings

4.7.Model Editing

5. Step-by-Step of Sketching, Modeling, Assembly & Drawing View


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Acknowledgement

It is my pleasure to be indebted to various people, who directly or

indirectly contributed in the development of this work and who

influenced my thinking, behavior, and acts during the course of study.

I express my sincere gratitude to Mr. Amit Sharmaworthy Principal

for providing me an opportunity to undergo summer training at

CADD-Centre Ghaziabad I am thankful to Mr. Praveen for his

support, cooperation, and motivation provided to me during the

training for constant inspiration, presence and blessings.Lastly, I would like to thank the almighty and my parents for their

moral support and my friends with whom I shared my day-to-day

experience and received lots of suggestions that improved my quality

of work.

Shubhan Singh

00513103611

MAE-7th-Semester


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History of Designing & Part Modeling

Solid modeling(or modelling) is a consistent set of principles for mathematical

and computer modeling of three-dimensional solids. Solid modeling is

distinguished from related areas of geometric modelingand computer

graphicsby its emphasis on physical fidelity.Together, the principles of

geometric and solid modeling form the foundation of computer-aided

designand in general support the creation, exchange, visualization, animation,

interrogation, and annotation of digital models of physical objects.

The use of solid modeling techniques allows for the automation of several

difficult engineering calculations that are carried out as a part of the design

process. Simulation, planning, and verification of processes such

as machiningand assemblywere one of the main catalysts for the development

of solid modeling. More recently, the range of supported manufacturing

applications has been greatly expanded to include sheetmetal

manufacturing, injection molding, welding,piperouting etc. Beyond traditional

manufacturing, solid modeling techniques serve as the foundation for rapidprototyping, digital data archival and reverse engineeringby reconstructing

solids from sampled points on physical objects, mechanical analysis using finite

elements, motion planningand NC path verification, kinematic and dynamic

analysisof mechanisms, and so on. A central problem in all these applications is

the ability to effectively represent and manipulate three-dimensional geometry

in a fashion that is consistent with the physical behavior of real artifacts. Solid

modeling research and development has effectively addressed many of these

issues, and continues to be a central focus of computer-aided engineering.

The historical development of solid modelers has to be seen in context of the

whole history of CAD, the key milestones being the development of the

research system BUILD followed by its commercial spin-off Romuluswhich

went on to influence the development of Parasolid, ACISand Solid Modeling

Solutions. Other contributions came from Mntyl, with his GWB and from the

GPM project which contributed, among other things, hybrid modeling

techniques at the beginning of the 1980s.


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The modeling of solids is only the minimum requirement of a CAD systems

capabilities. Solid modelers have become commonplace in engineering

departments in the last ten yearsdue to faster computers and competitive

software pricing. Solid modeling software creates a virtual 3D representation of

components for machine design and analysis. A typical graphical userinterface includes programmable macros, keyboard shortcuts and dynamic

model manipulation. The ability to dynamically re-orient the model, in real-time

shaded 3-D, is emphasized and helps the designer maintain a mental 3-D image.

A solid part model generally consists of a group of features, added one at a

time, until the model is complete. Engineering solid models are built mostly

with sketcher-based features; 2-D sketches that are swept along a path to

become 3-D. These may be cuts, or extrusions for example. Design work on

components is usually done within the context of the whole product

using assembly modeling methods. An assembly model incorporates references

to individual part models that comprise the product.

Another type of modeling technique is 'surfacing' (Freeform surface modeling).

Here, surfaces are defined, trimmed and merged, and filled to make solid. The

surfaces are usually defined with datum curves in space and a variety of

complex commands. Surfacing is more difficult, but better applicable to some

manufacturing techniques, like injection molding. Solid models for injection

molded parts usually have both surfacing and sketcher based features.


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Introduction to SolidWorks

SolidWorksis solid modelingCAD (computer-aided design) softwarethat runs

on Microsoft Windows and is produced by Dassault Systmes SolidWorksCorp., a subsidiary of Dassault Systmes, S. A.(Vlizy, France). SolidWorks is

currently used by over 2 million engineers and designers at more than 165,000

companies worldwide.

Modules in SolidWorks

SolidWorks extends design application through full integration with best-in-

class solutions. Different Modules in SolidWorks:

Part Modeling

Assembly Modeling

Surface Modeling

Sheet Metal Design

Drawing

Part Modeling:

This module produces parts easily and rapidly by creating features such as

extrudes, revolves, thin features, lofts, sweeps, advanced shelling, feature

patterns and holes.

The 3D part is the basic building block of the SolidWorks mechanical design

software. In SolidWorks you can design a part by sketching its component

shapes and defining their size, shpe and inter relationships. By successfully

creating these shapes, called features, you can construct the part. The basic

modelling process for each part is as follows:

Plan the part

Create the basic features

Analyse the remaining features

Analyse the part

Modify the features as necessary


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Assembly Modeling:

Assembly design gives a user the ability to design with user controlled

associability. SolidWorks builds these individual parts and sub-assemblies into

an assembly in a hierarchical manner. This is based on the relationships defined

by the constraints.

SolidWorks assembly design reference parts directly and maintains

relationships when creating new parts. In the assembly module, you can

perform physical simulation and mechanical interaction between the parts and

avoid any potential design flaws.

Surface Modeling:For designing dies, castings or injection moulds, surface modelling capability is

important. SolidWorks surface module can create complex models from

freeform shapes. You can create complex surfaces using lofts and sweeps with

guide curves, drag-handles for easy control and innovative surface features. The

basic process to create the surface model is as follows:

Acquire the wireframe model

Study the wireframe model

Create and verify the required surface

Output the surface model

Sheet Metal Design:

Sheet metal parts are generally used as enclosures for components or to provide

support to other component. We can design a sheet metal parts on its own

without any reference to the parts it will enclose, or you can design the part in

the context of an assembly that contains the enclosed components.

Drawing:

2D drawing module develops complete production ready engineering drawings

without drawing the sketches, makes revisions quickly and accurately, and

generates bills of materials and balloons automatically, easily controlling and

alignment of balloons.


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Features in SolidWorks:

SolidWorks is software developed for mechanical design engineers and contains

many features that facilitates the engineers to easily create and manage designs.

Some of the important features of SolidWorkds are as follows:

Feature-based

Parametric

Solid modelling

Fully associative

Constraints

Feature-based:

Just as an assembly is composed of number of individual piece parts, a

SolidWorks model also consists of individual constituent elements. These

elements are called as Features. The features are applied directly to the work

piece as soon as they are created.

Features can be classified as either sketched or applied.

Sketched Features: These are created directly upon a 2D sketch. Generally the

sketch is transformed into a solid by extrusion, rotation, sweeping or lofting.

Applied Features: These are created directly on the solid model. Fillets and

Chamfers are examples of this type of features.

Parametric:

The dimensions and relations used to create a feature are captured and stored in

the model. This enables not only to capture your design intent, but also to

quickly and easily make changes to the model.

In the revolved body, hole size is reduced parametrically since all the circles aredriven by relations and dimension. A change in one hole reflects the others.

Driving dimensions: These dimensions are used while creating a feature. They

include the dimensions associated with the sketch geometry, as well as those

associated with the feature itself.

Relations: This includes information, such as parallelism, tangency, and

concentricity. By capturing this in the sketch, SolidWorks enables you to

capture your design intent up front, in the model.


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Solid Modeling:

A solid model is the most complete type of geometry model used in CAD

systems. It contains all the wireframe and surface geometry necessary, to fully

describe the edges and the faces of the model.

In addition it has the information called the topology that releates the

geometry together. An example of topology would be which faces (surfaces)

meet at which edge (curve). This intelligence makes operation such as filleting

as easy as selecting an edge and specifying a radius.

Fully associative:

A SolidWorks model is fully associative with the drawings and the assemblies

that reference it. Changes to model are automatically reflected in the associated

drawings and assemblies. Similarly, you can make changes in the drawing or

assembly, and those changes will be reflected in the model.

Constraints:

Geometric relationships such as parallel, perpendicular, horizontal, vertical,

concentric and coincident are some of the constraints supported in SolidWorks.

In addition, equation can be used to establish mathematical relationships among

parameters. By using constraints and equations, you can guarantee the designconcepts, such as through holes or equal radii that are captured and maintained.

Design Intent

Design intent is your plan about how the model should behave when it is

changed. For example, if you model a boss with a blind hole in it, the hole

should move when the boss is moved.

To use the parametric modeler SolidWorks efficiently, you must consider the

design intent before modelling. Several factors contribute to how you captureyour design intent and they are:

Automatic Relations

Equations

Added relations

Dimensioning


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SolidWorks Fundamentals

Sketches:

The sketch is the basis for most 3D models.

Creating a model usually begins with a sketch. From the sketch, you can create

features. You can combine one or more features to make a part. Then, you can

combine and mate the appropriate parts to create an assembly. From the parts or

assemblies, you can then create drawings.

A sketch is a 2D profile or cross section. To create a 2D sketch, you use a plane

or a planar face. In addition to 2D sketches, you can also create 3D sketches that

include a Z axis, as well as the X and Y axes.

There are various ways of creating a sketch. All sketches include the followingelements:

Origin:In many instances, you start the sketch at the origin, which provides an anchor

for the sketch.

The sketch on the right also includes a centerline. The centerline is sketched

through the origin and is used to create the revolve.

Although a centerline is not always needed in a sketch, a centerline helps

to establish symmetry. You can also use a centerline to apply a mirror

relation and to establish equal and symmetrical relations between sketch

entities. Symmetry is an important tool to help create your axis-symmetricmodels quicker.


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Planes:You can create planes in part or assembly documents. You can sketch on planeswith sketch tools such as the Line or Rectangle tool and create a section view

of a model. On some models, the plane you sketch on affects only the way the

model appears in a standard isometric view (3D). It does not affect the designintent. With other models, selecting the correct initial plane on which to sketch

helps you create a more efficient model.

Choose a plane on which to sketch. The standard planes are front, top, and rightorientations. You can also add and position planes as needed. This example uses

the top plane.

Dimensions:You can specify dimensions between entities such as lengths and radii. When

you change dimensions, the size and shape of the part changes. Depending on

how you dimension the part, you can preserve the design intent.

The software uses two types of dimensions: dr iving dimensions and driven

dimensions.

Driving Dimensions:You create driving dimensions with the Dimension tool. Driving dimensions

change the size of the model when you change their values. For example, in the

faucet handle, you can change the height of the faucet handle from 40mm to

55mm. Note how the shape of the revolved part changes because the spline is

not dimensioned.


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To maintain a uniform shape generated by the spline, you need to dimension the

spline.


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Driven Dimensions:Some dimensions associated with the model are driven. You can create driven,or reference dimensions, for informational purposes using the Dimension tool.

The value of driven dimensions changes when you modify driving dimensions

or relations in the model. You cannot modify the values of driven dimensionsdirectly unless you convert them to driving dimensions.

In the faucet handle, if you dimension the total height as 40mm, the verticalsection below the spline as 7mm, and the spline segment as 25mm, the vertical

segment above the spline is calculated as 8mm (as shown by the driven

dimension).

You control design intent by where you place the driving dimensions and

relations. For example, if you dimension the total height as 40mm and create an

equal relation between the top and bottom vertical segments, the top segment

becomes 7mm. The 25mm vertical dimension conflicts with the otherdimensions and relations (because 40-7-7=26, not 25). Changing the 25mm

dimension to a driven dimension removes the conflict and shows that the spline

length must be 26mm.

Sketch Definitions:Sketches can be fully defined, under defined, or over defined.

In fully defined sketches, all the lines and curves in the sketch, and their

positions, are described by dimensions or relations, or both. You do not have tofully define sketches before you use them to create features. However, youshould fully define sketches to maintain your design intent.

Ful ly defined sketches appear in black.


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By displaying the entities of the sketch that are under defined, you candetermine what dimensions or relations you need to add to fully define the

sketch. You can use the color cues to determine if a sketch is under defined.

Under defined sketches appear in blue. In addition to color cues, entities in

under defined sketches are not fixed within the sketch, so you can drag them.

Over defined sketches include redundant dimensions or relations that are in

conflict. You can delete over defined dimensions or relations, but you cannotedit them.

Over defined sketches appear in yel low. This sketch is over defined because

both vertical lines of the rectangle are dimensioned. By definition, a rectangle

has two sets of equal sides. Therefore, only one 35mm dimension is necessary.

Relations:Relations establish geometric relationships such as equality and tangency

between sketch entities. For example, you can establish equality between the

two horizontal 100mm entities below. You can dimension each horizontal entityindividually, but by establishing an equal relation between the two horizontal

entities, you need to update only one dimension if the length changes.

The green symbols indicate that there is an equal relation between the

hor izontal li nes:


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Relations are saved with the sketch. You can apply relations in the followingways:

Interference: Some relations are created by inference. For example, as you

sketch the two horizontal entities to create the base extrude for the faucet base,

horizontal and parallel relations are created by inference.

Add Relations: You can also use the Add Relations tool. For example, tocreate the faucet stems, you sketch a pair of arcs for each stem.

To position the stems, you add a tangent relation between the outer arcs and

the top construction line horizontal (displayed as a broken line). For each stem,

you also add a concentric relation between the inner and outer arcs.

Sketch Complexity:A simple sketch is easy to create and update, and it rebuilds quicker.

One way to simplify sketching is to apply relations as you sketch. You can also

take advantage of repetition and symmetry. For example, the faucet stems on

the faucet base include repeated sketched circles:


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Here is one way you can create this sketch:


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Features:Once you complete the sketch, you can create a 3D model using features suchas an extrude (the base of the faucet) or a revolve (the faucet handle).

Some sketch-based features are shapes such as bosses, cuts, and holes. Other

sketch-based features such as lofts and sweeps use a profile along a path.

Another type of feature is called an applied feature, which does not require asketch.

Applied features include fillets, chamfers, or shells. They are called appliedbecause they are applied to existing geometry using dimensions and other

characteristics to create the feature.

Typically, you create parts by including sketch-based features such as bosses

and holes. Then you add applied features.

It is possible to create a part without sketch-based features. For example, you

can import a body or use a derived sketch. The exercises in this document show

sketch-based features.


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Assemblies:You can combine multiple parts that fit together to create assemblies.You integrate the parts in an assembly using Mates, such as Concentric and

Coincident. Mates define the allowable direction of movement of the

components. In the faucet assembly, the faucet base and handles haveconcentric and coincident mates.

With tools such as Move Component or Rotate Component, you can see how

the parts in an assembly function in a 3D context.To ensure that the assembly functions correctly, you can use assembly tools

such as Collision Detection. Collision Detection lets you find collisions with

other components when moving or rotating a component.

Drawings:

You create drawings from part or assembly models.

Drawings are available in multiple views such as standard 3 views and isometric

views (3D). You can import the dimensions from the model document and addannotations such as datum target symbols.


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Model Editing:

Use the SolidWorks FeatureManager design tree and the PropertyManager to

edit sketches, drawings, parts, or assemblies. You can also edit features and

sketches by selecting them directly from the graphics area. This visual approach

eliminates the need to know the name of the feature.

Edit Sketch: You can select a sketch in the FeatureManager design tree and

edit it. For example, you can edit sketch entities, change dimensions, view or

delete existing relations, add new relations between sketch entities, or change

the size of dimension displays. You can also select the feature to edit directly

from the graphics area.

Edit Features: Once you create a feature, you can change most of its values.

Use Edit Feature to display the appropriate PropertyManager. For example, ifyouapply a Constant radius fillet to an edge, you display the FilletProperty

Manager where you can change the radius. You can also edit dimensions by

double-clicking the feature or sketch in the graphics area to show the

dimensions and then change them in place.


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Hide & Show: With certain geometry such as multiple surface bodies in a

single model, you can hide or show one or more surface bodies. You can hideand show sketches, planes, and axes in all documents, and views, lines, and

components in drawings.

Suppress & Surpass: You can select any feature from the FeatureManager

design tree and suppress the feature to view the model without that feature.

When a feature is suppressed, it is temporarily removed from the model (but notdeleted). The feature disappears from the model view. You can then unsuppress


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the feature to display the model in its original state. You can suppress andunsuppress components in assemblies as well

Rollback:When you are working on a model with multiple features, you can

roll the FeatureManager design tree back to a prior state. Moving the rollback

bar displays all features in the model up to the rollback state, until you revertthe FeatureManager design tree back to its original state. Rollback is useful forinserting features before other features, speeding up time to rebuild a model

while editing it, or learning how a model was built.


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Step-by-Step of Sketching, Modeling & Assembling


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Documents

Solid Works Training Report