37 3

2016 3

Reprinted From

THE RESEARCH BULLETIN OF THE FACULTY OF

EDUCATION AND WELFARE SCIENCE,

OITA UNIVERSITY

Vol. 37, No. 3, March 2016

OITA, JAPAN

Res. Bull. Fac. Educ. Welf. Sci., Oita Univ.

341

1)

0.2 mm/revRa R 1.2

0.41 mm/revR 0.4 0.1 mm/rev

2)

57 226 m/min

0.1 mm/rev 0.2 mm/rev Rth0.2 mm/rev 1)

CNC (Computerlized Numerical Control Machine)

CNCCNC

27 11 24

341

342

1)

2)

CNC2008

( ) A

3)

30

4)

( ) ABS

3

CNC NC

( )5)

6)

7)

38)

342

343

CNC

1Rth μm f mm/rev

R mm ( R )

9)

JIS B 0601:2001 10)

Ra Rz 1) Ra

μm

Ra ( )

2) Rz

2 3

R

1)V m/min 1 (m)

N min-1( )D mm N min-1

V m/min

343

344

1 D VN

6 CNC V

2)f mm/rev 1 (mm) ( 1)

f (0.2 0.4 mm/rev )(0.02~0.1 mm/rev ) 11) 1

F mm/min f mm/rev N min-1

3) A mm/D (mm)

( )2 ( 5 mm/D)

(0.01 mm/D ) 11)

0.01 mm/DR

4) R

R 2R 0

N min-1

f mm/rev

mm

344

345

R (R 0.4mm ) R (R 0.4mm)

1

LR-55A SJ-301

JIS2001 Ra Rz

21)

( JX )ABS 1

35 mm 70 mm ( )

55 mm 30 mm 2)

80 ( CNMG 120404-TM 120408-TM120412-TM ) R 0.4 0.8 1.2

TAC ( DCLNR 2020K12) 3)

550 min-1( 77 m/min) 1020 min-1( 144 m/min)0.051 0.1 0.2 0.41 mm/rev2.0 mm/D ( ) Ra Rz

1800min-1( 57 226m/min) 0.1 0.2 mm/rev0.1 mm( ) Ra Rz

1.1

93

cm/cm 6 10-5

kg/cm2 500

98

kg/cm2 3 104

kg/cm2 300

345

346

12 3 3

( 1020 min-1 0.8 0.2 mm/rev 1020

20

15

10

5

0

5

10

0.4 mm

5 μm

10

8

6

4

2

0

2

4

6

8

10

μm

0.2 mm

4 μm

R 0.051 0.1 0.2 0.41Ra 1.04 1.09 1.87Rz 8.05 7.68 9.04Rth 0.81 3.13 12.50Ra 1.19 1.13 1.81 3.16Rz 8.35 7.62 10.72 16.17Rth 0.41 1.56 6.25 26.27Ra 1.18 1.05 1.48 3.33Rz 6.95 7.83 11.66 17.63Rth 0.27 1.04 4.17 17.51

1.2

1020min-1

mm/rev

0.4

0.8

R 0.051 0.1 0.2 0.41Ra 1.18 1.20 2.08Rz 8.18 8.25 10.28Rth 0.81 3.13 12.50Ra 1.21 1.18 1.42 3.56Rz 7.88 8.00 7.98 15.73Rth 0.41 1.56 6.25 26.27Ra 1.31 1.31 1.38 2.76Rz 8.89 8.83 8.69 12.62Rth 0.27 1.04 4.17 17.51

1.2

550min-1

mm/rev

0.4

0.8

346

347

min-1 R 0.8 0.41 mm/rev) RthR

0.051 0.1 mm/revR

3

3

2

RthK

1 Rz Rth K

4 25

4 550 min-1(77 m/min) 5 1020

min-1( 144 m/min)K

0.7 2.5

1

μm

mm/rev 550,1.2

K

Rz

Rth

μm

mm/rev 550,0.4

K

Rz

Rth

μm

mm/rev 550,0.8

K

Rz

Rth

0.82 2.64

1.28

2.09

347

348

4 5 R 22

Rth

12)

0.2 mm/rev K 1

0.1 0.2 mm/revK

Rth

0.41 mm/rev K

μm

mm/rev 1020,1.2

K

Rz

Rth

μm

mm/rev 1020, 0.4

μm

mm/rev 1020,0.8

K

Rz

Rth

0.93

2.51

1.71

2.17 1.00

348

349

3 30.41 mm/rev 0.2 mm/rev

2

77 m/min 144 m/min

0.2 mm/rev R 0.40.1 mm/rev R 1.2 0.41 mm/rev

Ra 0.41 mm/rev0.1 mm/rev

3

55 mm 30 mm 1800 min-1( 57 226m/min)

0.1 0.2 mm/rev 0.1 mm( )R 0.8 4 Rz 45-35 35-25 25-15

15-5 mm 4 V ( 40, 30, 20, 10 mm)

445 5 mm

Rz

57 226 m/min0.1 mm/rev 45-35 K

Rz 5.94 7.44 7.62 6.97K 3.80 4.76 4.88 4.46Rz 12.09 11.70 10.01 9.57K 1.93 1.87 1.60 1.530.2mm/rev

0.1mm/rev

mm

226.08 169.56 113.04 56.52Vm/min

349

350

0.1 mm/rev 0.2 mm/rev Rth

0.2 mm/rev

1) 77 144 m/min

0.2 mm/rev R 0.4 0.1 mm/rev R 1.2 0.41 mm/rev

Ra 0.41 mm/rev0.1 mm/rev

2)

1)57 226 m/min

0.1 mm/rev 0.2 mm/rev Rth0.2 mm/rev

CNC ()

1) (2010) 2) 124p. (2011)

350

351

3) (2008) 4) 14 ( ) 134p. (1962) 5) NC

53 1 pp.1-6 (2011) 6) 41st World Skills Competition -London, United Kingdom.

http://www.javada.or.jp/jigyou/gino/kokusai/41_london_taikai.html (2015.11.20) 7)

33 pp.49-56 (2014) 8) 3 CAD

108 406 pp.81-86 (2009) 9) pp.71-76 (1969) 10) JIS B 0601 (GPS)

http://www.jisc.go.jp/ (2015.11.20) 11) 125p. (2007) 12) -

- 9 pp.1-7 (2006)

Cutting Condition of Chemical-Wood in Lathe Turning

SHIMADA, Kazunori

Abstract

The purpose of this study is to explore the optimum cutting condition of chemical-wood in lathe turning. We conducted an experiment with the following cutting operations; straight turning and end-surface preparation. The results were, 1) From the experiment of straight turning, we found that the cutting speed has a low effect on surface roughness. On the other hand, the feed rate has a noticeable effect on it. We observed that the optimum feed rate is about 0.2mm/rev. 2) From the experiment of end-surface preparation, we grasped that there is no effect of the cutting speed within a range of about 57-226m/min on surface roughness. We also observed that surface roughness is more in accordance with the theoretical roughness value with a feed rate of 0.2 mm/rev than 0.1 mm/rev.

Key words General Purpose Lathe, Chemical-wood, Cutting Condition,

Machine Work

351