University of Texas at Arlington MAE 1351 HW04: Engineering Design

This assignment solution addresses the requirements of MAE 1351 HW04, focusing on engineering design and SolidWorks modeling. The assignment involves creating solid models of various parts, simulating manufacturing processes by selecting appropriate features in SolidWorks, and annotating these features to reflect material forming, addition, or removal operations. The solution includes screenshots of the models, feature trees, and annotations describing the manufacturing operations. Additionally, the solution addresses a sand casting problem, requiring the creation of mold halves for a given part and reporting the combined weight of the molds. The student is instructed to build the models based on their understanding of manufacturing processes and to ensure the final weight is within a specified tolerance. The document also specifies the inclusion of annotations with the student's name and weight of the parts, along with the proper orientation of the part in the graphics window. The assignment emphasizes the importance of understanding manufacturing operations and their representation in SolidWorks feature trees.

MAE 1351 Introduction to Engineering Design
Dr. Raul Fernandez – Spring 2016
Homework Assignment HW04
Johnathan E. Lancaster (John) – 1234567890
Lecture section 00X. Lab section 00X (TA: Mr. Smith)
UT Arlington Honor Code
By submitting this homework, I represent that I understand and am in full compliance with the
academic integrity policy as explained in the course syllabus.
While collaboration among students is allowed, expected and encouraged in the process of learning the
material, this homework assignment is not a group project. Therefore each answer submitted must be
individually worked out from the beginning and completed in whole by each and every student.

TEXTBOOK PROBLEMS FROM 6.16.4
Follow these directions, not the ones in the book. You already drew at least one of these parts in
SolidWorks in a previous assignment. Based on your knowledge of common manufacturing processes,
build each part in SW as you would envision them being fabricated, renaming the features to reflect
your choice of material forming, addition, or removal operations.
You are free to create the solid differently from how you approached before (i.e., build the part from
scratch). This time, make sure your solid model perfectly resembles the pictorial in the book (small book
mistakes notwithstanding; see note in HW02); the weight must be correct within ±5% to receive full
credit. Assume, for simplicity, that all the parts are made out of Plain Carbon Steel.
Ensure that your feature tree is visible so that we can read what manufacturing operations you selected
to “build” the part, each giving rise to a particular feature. If the feature tree exceeds the available
screen space, simply show the tree starting at the beginning. Expand the tree window laterally as to be
able to read each feature name (manufacturing operation) in full.
Insert an annotation on the upper right hand with a short sentence describing each manufacturing
operation—effectively an expanded version of your feature tree. Insert an annotation below and to the
right of the part with the words “DRAWN BY: <your first and last name in capitals>,” followed by a line
below with the words “WEIGHT: <weight> <g or lb consistent with drawing units>.”
In the graphics window, show your final solid part in the same view orientation and style as seen in the
problem pictorial, neatly centered and with minimal margins. No need to show dimensions.
Begin in the following page with each of the problems requested, one page per problem. An example of
what your screen capture should look like is shown below.

TEXTBOOK PROBLEMS 6.16.4a

TEXTBOOK PROBLEMS 6.16.4n

TEXTBOOK PROBLEMS 6.16.4ii

TEXTBOOK PROBLEMS 6.16.4mm

TEXTBOOK PROBLEMS 6.16.4p (HIGH VOLUME PRODUCTION)
Imagine this piece is to be made in large quantities by means of sand casting. DO NOT make the piece
itself, but rather create the molds which will produce the geometry shown in the book. The dimensions
of the rectangular prism formed when the molds are pressed together should be 5.0 x 3.0 x 3.0 inches.
You may divide up your mold and place the parting line wherever you think it would work best. Take a
screenshot of each mold half—two screenshots total, such that the cavity can be seen—and report in
one of them the combined weight of the two molds. Assume Plain Carbon Steel as the material (this is
just for simplicity—it should really be sand), and don’t worry about adding the injection hole. Note that
the part to be molded is not symmetrical nor is it to scale; look closely at its dimensions.