Architecture Chapter 11 Homework Drawing templates include standard sheet sizes and formats

CHAPTER 11 FASTENERS

ANDSPRINGS PROBLEMS

INSTRUCTIONS

1. From the selected problems, determine which views and

dimensions should be used to completely detail the part.

Use simplified representation for thread representations

unless otherwise specified in the instructions or by your

instructor. Use detailed representation for spring represen-

tations unless otherwise specified in the instructions or by

your instructor.

2. Make a multiview sketch to proper proportions, including

dimensions and notes.

3. Using the sketch as a guide, draw an original multiview

drawing on an adequately sized ASME drawing sheet with

border and sheet blocks. Add all necessary dimensions and

notes using unidirectional dimensioning.

4. Include the following general notes at the lower left corner

of the sheet .5 in. each way from the corner border lines:

NOTES:

1. DIMENSIONING AND TOLERANCING PER ASME

Y14.5-2009.

2. REMOVE ALL BURRS AND SHARP EDGES.

Additional general notes can be required, depending on the

specifications of each individual assignment. Use the following

tolerances for unspecified inch values. A tolerance block is

recommended as described in Chapter 2, Drafting Equipment,

Media, and Reproduction Methods, and as shown in problems for

Chapter 10, Dimensioning and Tolerancing, unless otherwise

specified.

Unspecified Tolerances

Decimals mm In.

X6.1

XX 6.01

XXX 6.005

ANGULAR 6309

FINISH 3.2 μm 125 μin.

For metric drawings, provide a general note that states TOLER-

ANCES FOR UNSPECIFIED DIMENSIONS COMPLY WITH ISO

2768-m. Provide a general note that states SURFACE FINISH

3.2μm UNLESS OTHERWISE SPECIFIED.

59728_ch11_EOC_ptg01.indd 2 03/02/16 10:27 am

PROBLEM 11.2 (in.)

Part Name: Thumb Screw

Material: SAE 1315 steel

.688

R.032

10-32 UNF-2A

358

2X 458 X .032

Ø.437 Ø.151

.219

64P KNURL

To access CADD template files with predefined drafting

settings, go to the Student Companion Website, select

Student Downloads, Drafting Templates, and then the

appropriate template file. Use the templates to create new

designs, as a resource for drawing and model content, or

for inspiration when developing your own templates. The

ASME-Inch and ASME-Metric drafting templates follow

ASME, ISO, and related mechanical drafting standards.

Drawing templates include standard sheet sizes and

formats, and a variety of appropriate drawing settings and

content. You can also use a utility such as the AutoCAD

DesignCenter to add content from the drawing templates

to your own drawings and templates. Consult with your

instructor to determine which template drawing and

drawing content to use.

DRAFTING TEMPLATES

Part 1: Problems 11.1 Through 11.24

PROBLEM 11.1 (in.)

Part Name: Full Dog Point Gib Screw

Material: 10-32 UNF-2A .75 long

.25

.120

SR.075

SIDE VIEW

.750

.125

59728_ch11_EOC_ptg01.indd 3 03/02/16 10:27 am

PROBLEM 11.3 (in.)

Part Name: H-Step Threading Screw

Material: SAE 3130

SPECIFIC INSTRUCTIONS: Draw each of the three threads using

the representation specified below each thread note.

PROBLEM 11.5 (in.)

Part Name: Machine Screw

Material: Stainless steel

Finish All Over: 2 μm

6X Ø.08

.25 (6X 60

8

)

45

8

X .03

Ø.15

.31

Ø.26 .31-24 UNF-3A

45

8

X .03

.50

1.00

.50

.38

.25

PROBLEM 11.4 (metric)

Part Name: Knurled Hex Soc Head Step Screw

Material: SAE 1040

Case Harden: 1.6-mm deep per Rockwell C scale

Finish: 2 μm; black oxide

Ø

R3.05

NECK 3W X Ø4.06

M20 X 6g

45

8

X 2.54

HEX. SOCK. HD.

16 ACROSS FLATS

0.8P DIAMOND

KNURL

45

8

X 3

97.5

73

38 18.99

19.02

28.52

28.58

16

Ø

Ø.72

Ø.51

Ø.43

KNURL

DIAMOND

MEDIUM

.87-9 UNC-2A

(SHOW IN DETAIL

REPRESENTATION)

(SHOW IN SCHEMATIC)

.62-11 UNC-2A

SIMPLIFIED)

(SHOW IN

.50-20 UNC-2A

45

8

X .06

4X

1.00

4.75

.25

1.00 1.00

.25

Ø1.00

59728_ch11_EOC_ptg01.indd 4 03/02/16 10:27 am

PROBLEM 11.6 (metric)

Part Name: Lathe Dog

Material: Cast iron

Ø7.94

M10 X 1.5-5H

Ø20.5

45

8

X 1

Ø50

2X R3

R6

2X 45

8

X 1

R20

15

66

15

7.5

45

13

PROBLEM 11.7 (in.)

Part Name: Threaded Step Shaft

Material: SAE 1030

Ø.824

Ø.605 Ø.384

1.000-8 UNC .750-10 UNC .500-13 UNC

3X 30

8

Ø.875

Ø1.250

.750

.250

3X .188

3X .063

2.000

4.000

6.000

7.000

PROBLEM 11.8 (in.)

Part Name: Washer Face Nut

Material: SAE 1330 steel

Ø.502 DRILL

.781

30

8

9/16-18 UNF-2B

.016

.188

BOTTOM

VIEW

PROBLEM 11.9 (in.)

Part Name: Shoulder Screw

Material: SAE 4320 steel

5/16-24 UNF-2A

R.031

2X 458 X .063

.250

Ø.625

Ø.125

358

1.500

1.000

PROBLEM 11.10 (in.)

Part Name: Stop Screw

Material: SAE 4320

Hex Depth: .175

Note: Medium diamond knurl at head

.850

A

.750

358

Ø.313

2X 458 X .063

3/8-24 UNF-2A

Ø.323

Ø.625

5/16 HEX

CHART A

PART #

1DT-1011

1DT-1012

LENGTH

4.438

3.688

35

8

MEDIUM DIAMOND KNURL

59728_ch11_EOC_ptg01.indd 5 03/02/16 10:27 am

PROBLEM 11.11 (metric)

Part Name: Vise base

Material: Cast iron

21

.5

4X Ø 3

Ø7

2

42 32

6

19

11.5

62

39

46 55

24

120

22

45

8

60 7

6X R6

M12 X 1.75-6H

32 32

PROBLEM 11.12 (metric)

SPECIFIC INSTRUCTIONS: Create spring drawing based on the

following specifications:

Part Name: Compression Spring

Material: 2.5-mm steel spring wire

Ends: Plain ground

Outside Diameter: 25

Free Length: 75

Number of Coils: 16

Finish: Chrome plate

DETAIL B

2X R0.6

(THRU BOTH SIDES)

DETAIL A

24

31

63

5

63

16

6

10.5

63

PROBLEM 11.13 (metric)

Part Name: Flat Spring

Material: 3.5-mm spring steel

Finish: Black oxide

Heat Treat: 1-mm deep Rockwell C scale

A

DETAIL A

SCALE 2 : 1

59728_ch11_EOC_ptg01.indd 6 03/02/16 10:27 am

PROBLEM 11.14 (in.)

Part Name: Retaining Ring

Material: Stainless steel

.160

6

.008

.050

6

.008

.160

6

.008

4X R.040

.075

6

.008

Ø.470

.125

6

.008

7. 5

8

15

8

.080

2X Ø.078 -.002

+.015

.080

.050

6

.002

2X R.040

PROBLEM 11.15 (in.)

Part Name: Half Coupling

Material: Ø1.250 C1215 steel

Problem based on original art courtesy TEMCO.

TURNS FROM NOMINAL. TAP FROM THIS END.

.500-14 NPTF: L-1 GAGE, PLUS 1/MINUS 1

2

47

8

43

8

HALF OF PART SHOWN FOR CLARITY.

OUTSIDE SURFACE OF COUPLING MUST BE

.015

.005

R.015

.850

.865

FREE OF OXIDIZATION AND INK.

.045

.025

.580

.560

.510

.490

.891

.922

Ø

2

4X

2X

Ø1.250

Ø

PROBLEM 11.16 (in.)

Part Name: Collar

Material: SAE 1020

Ø1.498-.000

+.003

2X 45

8

X .125

Ø2.250

2.000

1. 6 6 9

.375

.379

1. 6 7 9

PROBLEM 11.17 (in.)

Part Name: Bearing Nut

Material: SAE 1040

1. 12 5

.125

45

8

X .125

1-8 UNC-2B

R.06

Ø2.000

(FLATS)

1. 5 0 0

59728_ch11_EOC_ptg01.indd 7 03/02/16 10:27 am

PROBLEM 11.18 (in.)

Part Name: Adjustment Screw

Material: SAE 2010 steel

Ø.690

7/8-6-ACME-2G

(Ø.875)

3.873

.373

.062

1. 4 0 0

.125

458

908

.125 .250

0.125

MEDIUM DIAMOND KNURL

.250

PROBLEM 11.19 (in.)

Part Name: Screw Shaft

Material: 3/4 hex 3 4 1/8 stock mild steel

R.06

1. 5 0

3.25

.75

30

8

X .06 (HORIZ)

.50-20 UNF-3B

Ø.50

1. 2 5

.375-16 UNC-2B

.75

Ø.312

1. 3 0

PROBLEM 11.20 (in.)

Part Name: Packing Nut

Material: Bronze

A: Spanner slots .250 wide 3 .063 deep.

Ø1.375

-.000

+.002

1.875-20 UNF-2A

4X A

A: SLOT WIDTH .250

SLOT DEPTH .063

THREADS NOT SHOWN

.313

PROBLEM 11.21 (in.)

Part Name: Pump Pivot Support

Material: Cold rolled mild steel

R.375

Ø.313 THRU

THRU

-.002

+.000

Ø.250

3.500

.750

.375

.625

1. 8 7 5

.750

.375

1. 0 0 0

.500-13 UNC-1A

PROBLEM 11.22 (in.)

Part Name: Set Screw

Material: Steel

SPECIFIC INSTRUCTIONS: Prepare a detailed drawing from the

written instructions below.

59728_ch11_EOC_ptg01.indd 8 03/02/16 10:27 am

1.000

.375

.750 CLAMP LENGTH

1.500

5.500

4.000

.806

.500

.250

.500

SPRING DATA

MATERIAL: SAE 4063

SIZE: .125

FORCE AT DEFLECTION: 10,000 PSI

2X Ø.188

FORCE

PROBLEM 11.23 (in.)

Part Name: Spiral Torsion Spring

Material: SAE 1060

2.330

.610

.660

40°

.500

1.870 END

END

PROBLEM 11.24 (in.)

Part Name: Flat Spring

Material: SAE 4063

MATH PROBLEMS

Part 2: Problems 11.25 Through 11.31

PROBLEM 11.25 The taper of a pin is .5:12. What would be

the taper for a 5 in. long pin?

PROBLEM 11.26 A lathe operator turns out 9 brass bushings

in 2 hours 15 minutes. At the same rate, how many bushings can

be turned in 8 hours?

PROBLEM 11.27 Seventeen drills cost $27.50. What would

seven drills cost?

PROBLEM 11.28 The scale on a landscape map is 1:50. If two

points on the map are 3.50 apart, what is the actual distance be-

tween the two points?

PROBLEM 11.29 A crew of twelve people assembles 45 units

a day. If production is to be increased to 80 units per day, how

many people will be needed?

PROBLEM 11.30 If five dozen shop cloths are enough for six

mechanics, how many cloths will be needed for eleven

mechanics?

PROBLEM 11.31 A shop manual chain hoist requires a 22-lb

pull to lift one ton (2000 lb). How much pull would it take to lift a

1500-lb load

59728_ch11_EOC_ptg01.indd 9 03/02/16 10:27 am

122



Chapter 11

Fasteners and Springs

Solutions to End-of- Chapter Problems

(Note: Problem solutions are provided without border and sheet blocks, which should be

included in student drawings.)

Part 1: Problems 11.1 Through 11.24

PROBLEM 11.1 Full dog point gib screw (in.)

123



PROBLEM 11.3 H-Step threading screw (in.)

124



PROBLEM 11.6 Lathe dog (metric)

125



PROBLEM 11.8 Washer face nut (in.)

PROBLEM 11.9 Shoulder screw (in.)

126



PROBLEM 11.10 Stop screw (in.)

127



PROBLEM 11.12 Compression spring (metric)

PROBLEM 11.13 Flat spring (metric)

128



PROBLEM 11.14 Retaining ring (in.)

PROBLEM 11.15 Half coupling (in.). Courtesy TEMCO.

129



PROBLEM 11.16 Collar (in.)

PROBLEM 11.17 Bearing nut (in.)

130



132



Math Problem Solutions

Part 2: Problems 11.25 Through 11.31