M ASS P RODUCTION IN M ANUFACTURING Copyright © Texas Education Agency, 2012. All rights reserved Principles of Manufacturing 1

MASS PRODUCTION IN

MANUFACTURING

Copyright © Texas Education Agency, 2012. All rights reserved

Principles of Manufacturing

1

TYPES OF MASS PRODUCTION

Custom Manufacturing Intermittent Manufacturing Continuous Manufacturing Just-In-Time Flexible Manufacturing

2 Copyright © Texas Education Agency, 2012. All rights reserved

CUSTOM MANUFACTURING

Producing a small number of products made to customer specifications.


INTERMITTENT MANUFACTURING

Producing parts in groups instead of continuously. Making small batches of parts when needed, and then changing to different parts.


CONTINUOUS MANUFACTURING

Producing parts in a steady flow.


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.


FLEXIBLE MANUFACTURING

The ability to easily change tooling, materials, and equipment to produce different products.


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.


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/op

a/kids/kid_tm_curriculum.html9 Copyright © Texas Education Agency, 2012. All rights reserved

http://www.inventnow.org/

http://www.uspto.gov/web/offices/ac/ahrpa/opa/kids/kid_tm_curriculum.html






TEXAS PAPER TOWEL HOLDER

Mass Production Project

10

10Copyright © Texas Education Agency, 2012. All rights reserved

PLANS


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.


PARTS OF PAPER TOWEL HOLDERCap with ¼” dowel

Post

Tear Bar

Base


BILL OF MATERIALS FOR ONE PAPER TOWEL HOLDER

Bill of MaterialsPart

NameQuantity Thickness Width Length

BoardFootage

Base 1 ¾” 9 ½” 9 ½” .75

Cap 1 ¼” 2” dia.

Post 1 1” dia. 10 ¼”

Bar 1 3/8” dia. 6 ¾”

Cap Peg 1 ¼” dia. 1 ½”

Wood Screw 1

#8 Flathead

1 ½”


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.


16

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.

Copyright © Texas Education Agency, 2012. All rights reserved

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.


TEAR BAR

Cut 3/8” dowel to 6 ½” length using fixture. Sand dowel with 120 grit sandpaper. Sand dowel with 220 grit sandpaper.


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.


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.


RESOURCES

How It’s Made videos http://science.discovery.com/videos/how-its-

made/ , New VW Car Factory in Dresden German

y

http://www.youtube.com/embed/nd5WGLWNllA?rel=0


http://science.discovery.com/videos/how-its-made/







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M ASS P RODUCTION IN M ANUFACTURING Copyright © Texas Education Agency, 2012. All rights reserved Principles of Manufacturing 1