MASS PRODUCTION
IN
MANUFACTURING
Principles of Manufacturing
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TYPES OF MASS PRODUCTION
Custom Manufacturing
Intermittent Manufacturing
Continuous Manufacturing
Just-In-Time
Flexible Manufacturing
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2
CUSTOM MANUFACTURING
Producing a small number of products made to
customer specifications.
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3
INTERMITTENT MANUFACTURING
Producing parts in groups instead of
continuously. Making small batches of parts
when needed, and then changing to different
parts.
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4
CONTINUOUS MANUFACTURING
Producing parts in a steady flow.
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JUST-IN-TIME
The use of a production strategy to make products
when ordered and not stock piling materials or
finished products. Material and parts arrive at the
production line when needed.
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FLEXIBLE MANUFACTURING
The ability to easily change tooling, materials, and
equipment to produce different products.
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PRODUCT PROTECTION
When a product is invented the person or
company will apply for a patent.
Patents are licenses assigned by the government
to protect the inventor from someone else copying
their product.
The US Patent Agency keeps track of all new
ideas and inventions.
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PATENTS
The United State Patent and Trademark Office
has educational material for students.
Inventnow is a game for students to use to invent
a product and start the patent application.
Icreatm Curriculum has information about
Patents and Trademarks.
http://www.uspto.gov/patents/process/index.jsp
http://www.inventnow.org/
http://www.uspto.gov/web/offices/ac/ahrpa/opa/ki
ds/kid_tm_curriculum.html
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9
TEXAS PAPER
TOWEL HOLDER
Mass Production Project
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PLANS
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TEXAS PAPER TOWEL HOLDER
All jigs, fixtures and patterns will be provided by
the teacher.
Base is made from a 1 X 10 pine board, 1”, 3/8”
and ¼” dowels, a wood screw and 4 rubber
bumpers / felt pads.
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PARTS OF PAPER TOWEL HOLDER
Cap with ¼” dowel
Tear Bar
Post
Base
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BILL OF MATERIALS
TOWEL HOLDER
FOR ONE
PAPER
Bill of Materials
Part
Name
Quantity
Thickness
Width
Length
Board
Footage
Base
Cap
Post
Bar
Cap Peg
1
1
1
1
1
¾”
¼”
1” dia.
3/8” dia.
¼” dia.
9 ½”
2” dia.
9 ½”
.75
Wood
Screw
10 ¼”
6 ¾”
1 ½”
#8
Flathead
1 ½”
1
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TEXAS BASE
Cut base to 9 1/2” x 9 1/2” square size using
radial arm saw.
Use oversized pattern to draw layout, cap and
hole placement on base.
Use 2” hole saw to cut out cap.
Cut out shape on band saw or scroll saw.
Drill holes in base using drill press.
Attach finishing jig to bottom of base with screws.
Use router with a straight bit to cut base to final
size.
Remove jig from base and route the top edge with a
round over bit.
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Drill 1” hole 3/8” deep for towel post as marked.
Drill 3/8” hole 3/8” deep for tear bar as marked.
Drill 1/8” hole in bottom center of 1” hole.
Sand surface with 120 grit sandpaper.
Sand surface with 220 grit sandpaper.
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POST
Cut 1” dowel to 10” length using the fixture.
Drill ¼” hole ¾” deep in center of one end of the
post using fixture.
Sand post with 120 grit sandpaper.
Sand post with 220 grit sandpaper.
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TEAR BAR
Cut 3/8” dowel to 6 ½” length using fixture.
Sand dowel with 120 grit sandpaper.
Sand dowel with 220 grit sandpaper.
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CAP
Using jig to hold cap, sand edges using disk
sander.
Use the non slip router pad to hold the cap and
rout both edges using a router and round over bit
on.
Sand cap with 120 grit sand paper.
Sand cap with 220 grit sand paper.
Cut 1/4” dowel to 1 ½” length using
fixture.
Glue into hole in center of cap.
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ASSEMBLY
Mount rubber bumpers or felt pads to cover the
holes on bottom of base made when attaching
finish jig.
Glue post into 1” hole on base.
Install screw into 1/8” hole from underneath side.
Glue tear bar into 3/8” hole in base.
Allow glue to dry.
Inspect and sand again if necessary.
Finish project using approved finish materials.
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RESOURCES
How It’s Made videos
http://science.discovery.com/videos/how-its-made/
New VW Car Factory in Dresden, Germany
http://www.youtube.com/embed/nd5WGLWNllA?r
el=0
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