Report࣍ࢵࢺࣉࣞࢫࡢ₶⁥≉ᛶࡢ◊✲ᰗ⏣ࠉ᫂

A. Yanagidaㅖゝ㏆ᖺ㸪⮬ື㌴ࡢ㍍㔞໬ࡸᏳ඲ᛶྥୖ࡜࠸ࡗࡓほⅬ࠿ࡽ㧗ᙉᗘ㗰ᯈࡢ౑⏝ࡀ✚ᴟⓗ࡟⾜ࢃࢀ࡚࠸ࡿ㸬ࡇࢀࢆඞ᭹ࡍࡿࡓࡵ࡟㧗ᙉᗘ㗰ᯈࡀ㛤Ⓨࡉࢀ࡚ࡁࡓࡀ㸪㗰ᯈᙉᗘࡀ
1000MPa ࢆ㉺࠼ࡿ࡜」㞧࡞ᙧ≧࡬ࡢࣉࣞࢫᡂᙧࡣᅔ㞴࡟࡞ࡿ㸬ࡑࡇ࡛㸪ᮦᩱࢆ㧗 ࡟ຍ⇕ࡍࡿࡇ࡜࡛ᡂᙧᛶࡢྥୖ࡜ࢫࣉࣜࣥࢢࣂࢵࢡࡢపῶࢆྍ⬟࡜ࡋ㸪1500MPa ࡢᙉᗘࢆᣢࡘ㒊ᮦࢆᚓࡿࡇ࡜ࡀฟ᮶ࡿ࣍ࢵࢺࢫࢱࣥࣆࣥࢢ㸪࠶ࡿ࠸ࡣ࣍ࢵࢺࣉࣞࢫ࡜࿧ࡤࢀࡿᡂᙧἲࡀᐇ⏝໬ࡉࢀ࡚࠸ࡿ㸬ࡇࡢᡂᙧἲ࡛ࡣ㗰ᯈࡀ 900°C ๓ᚋࡢ࣮࢜ࢫࢸࢼ࢖ࢺᇦࡢ ᗘ࡟ຍ⇕ࡉࢀ㸪㔠ᆺ࡟⛣ືᚋ㸪෭༷ࡉࢀࡓ㔠ᆺ࡛ᡂᙧࡋ㸪㔠ᆺෆ࡛ࡢ෭༷࡟࡚࣐ࣝࢸࣥࢧ࢖ࢺኚែ࡟ࡼࡿ㧗ᙉᗘ໬ࡀ⾜ࢃࢀࡿ 1) 㸬࣍ࢵࢺࣉࣞࢫࡢ᭱㐺໬࡟ࡣ㸪ከࡃࡢࣉࣟࢭࢫࣃ࣓࣮ࣛࢱࡀᚲせ࡜ࡉࢀ㸪㗰ᯈࡢᡂᙧᛶ2)㸪 ᗘ࡟ᑐࡍࡿᶵᲔⓗ≉ᛶ 3,4) ࡞࡝ࡢ◊✲ࡀ⾜࡞ࢃࢀ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᕤලࡢᦶ⪖ࡸ↝௜ࡁ࡞࡝ࡢၥ㢟࠿ࡽ₶⁥≉ᛶࡢ◊✲ࡀᚲせ࡜ࡉࢀ࡚࠸ࡿ࡟ࡶ㛵ࢃࡽࡎ㸪ୡ⏺ⓗ࡟ࡶ࣍ࢵࢺࣉࣞࢫࡢࢺࣛ࢖࣎ࣟࢪ࣮ⓗ࡞◊✲ࡣᑡ࡞ࡃ㸪
SRV ࡢࡼ࠺࡞ᦾືᆺࡢヨ㦂 5) ࡟␃ࡲࡗ࡚࠸ࡓ㸬ⴭ⪅ࡽࡣ㸪⇕㛫ᖹᯈᘬᢤࢆ⏝࠸ࡓ₶⁥ᛶホ౯ヨ㦂ᶵࢆ㛤Ⓨࡋ㸪SPHC㗰ࡢ⇕㛫ᦶ᧿ಀᩘࢆ ᐃࡋࡓ 6) 㸬࣍ࢵࢺࣉࣞࢫ࡛ࡣຍ⇕࡟ࡼࡿ㓟໬ࢆᢚไࡍࡿࡓࡵ㸪࢔࣑ࣝࡸள㖄ࡵࡗࡁࢆ᪋ࡋࡓ⣲ᮦࢆ⏝࠸ࡿሙྜ࡜ࢥ࣮ࢸ࢕ࣥࢢ࡞ࡋࡢ⣲ᮦࢆ⏝࠸ࡿሙྜࡀ࠶ ࡿࡀ 㸪ⴭ⪅ࡽ ࡣ㸪 Al-Si ࡵࡗࡁ㗰ᯈ(22MnB5)ࡢ
ࢻࣛ࢖㸪₶⁥᮲௳࡛ࡢ⇕㛫࡛ࡢᦶ᧿ಀᩘࢆ ᐃࡋࡓ 7) 㸬Dessain ࡽ ࡣ ෇ ⟄ 㔠 ᆺ ᘬ ᢤ ࡁ ࡟ ࡼ ࡿ ヨ 㦂 ᶵ ࢆ 㛤 Ⓨ ࡋ 㸪Al-Si ࡵࡗࡁ࣍ࢵࢺࣉࣞࢫ㗰ᯈ(Usibor1500)ࡢࢻࣛ࢖᮲௳
ୗ࡛ࡢᦶ᧿ಀᩘࢆ ᐃࡋ 8) , Hardell ࡽࡣ Al-Si ࡵࡗࡁ㸪㠀ࡵࡗࡁ࣍ࢵࢺࣉࣞࢫ㗰ᯈ࡜ᮍฎ⌮࠾ࡼࡧ⾲㠃ฎ⌮ࢆ᪋ࡋࡓ㔠ᆺ㛫ࡢᦶ᧿ಀᩘࡢ ᐃࢆ⾜ࡗࡓ 9) 㸬㔠ᆺ⾲㠃⢒ࡉࡸࢫࢣ࣮ࣝཌࡉࡢࡼ࠺࡞ࢺࣛ࢖࣎ࣟࢪ࣮ᅉᏊࡀᦶ᧿ಀᩘ࡟ཬࡰࡍᙳ㡪࡟㛵ࡍࡿሗ࿌ࡣぢࡽࢀ࡞࠸㸬ᮏሗ࿌࡛ࡣ㸪Al-Si ࡵࡗࡁ㸪㠀ࡵࡗࡁ 22MnB5 㗰ᯈࡢࢫࢣ࣮ࣝཌࡉ࠾ࡼࡧ㸪㔠ᆺࡢ⾲㠃⢒ࡉ㸪㔠ᆺ ᗘࡀᦶ᧿ಀᩘ࡟ཬࡰࡍᙳ㡪ࢆࢻࣛ࢖࣭₶⁥᮲௳ୗࡢᦶ᧿ಀᩘࡢ ᐃ࡟ࡼࡾㄪᰝࡋࡓ⤖ᯝࢆ᪤ሗࡢࢹ࣮ࢱ 10,11) ࢆྵࡵ࡚♧ࡍ㸬ᶵࡣἜᅽ࢔ࢡࢳ࢚࣮ࣗࢱ㸪ຍ⇕⅔㸪ᙇຊ⿦⨨࠿ࡽᵓᡂࡉࢀࡿ㸬ࡇࡢヨ㦂ᶵࡢ୺࡞௙ᵝࡣ⾲  ࡟♧ࡍ㸬Ἔᅽ࢔ࢡࢳ࢚࣮ࣗࢱ࡟ࡼࡾ㈇Ⲵࡉࢀࡿᢲ௜ࡅⲴ㔜ࡢ᭱኱ ್ ࡣ 200kN ࡛ ࠶ ࡿ 㸬 ຍ ⇕ ⅔ ࡜ ࡋ ࡚ ࡣ 㸪 ຍ ⇕ 㒊 㛗 ࡉ960mm ࡢ㉥እ⥺࢖࣓࣮ࢪຍ⇕⅔ࢆ౑⏝ࡋ㸪ຍ⇕ ᗘࡣ㸪ࢹࢪࢱࣝㄪ⠇ィ࡟ࡼࡗ࡚ไᚚࡉࢀ㸪1100°C ࡲ࡛タᐃࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸬⅔ෆ࡟ࡣ㞺ᅖẼ࢞ࢫ࡜ࡋ࡚࢔ࣝࢦࣥ࢞ࢫࢆᑟධࡋ㸪ຍ⇕ࡉࢀࡓヨ㦂∦ࡢ㓟໬ࢆไᚚࡉࡏࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ฟཱྀഃᘬᢤࡁ⿦⨨ࡣ࣮࣎ࣝࢿࢪ࡟ࡼࡾ㥑ືࡋ㸪ࡑࡢ᭱኱್ࡣ 20kN ࡛࠶ࡿ㸬࣮ࣟࢻࢭࣝ࡟ࡼࡾᢲ௜ࡅⲴ
㔜 ' ࠾ࡼࡧᘬᢤࡁⲴ㔜   ࡀ᳨ฟࡉࢀࡿ.

Compression device

FurnaceTension device

1000ᅗ  ヨ㦂⿦⨨ᶍᘧᅗ⾲  ヨ㦂ᶵ≉ᛶCompression load 'Max㺃200kN

Tension load  Max䞉20kN

Tension speed (Max㺃30mm/s

Temperature  Max䡡1100°C㔠ᆺ
㔠ᆺࡣ࣮࣋ࢫ(S50C)࡜ࢲ࢖(SKD61)ࢆ 2 ศ๭࡛ࡁࡿᙧᘧ࡜ࡋࡓ㸬ᘬᢤࡁ㒊ࡢ㛗ࡉࡣ 20mm ࡜ࡋ㸪ࢥ࣮ࢼ࣮R ࡣ5mm ࡜ࡋࡓ㸬㔠ᆺࡢ෭༷ࡢຠᯝࢆㄪᰝࡍࡿࡓࡵ࡟㸪࣮࣋ࢫ࠾ࡼࡧ㸪ࢲ࢖࡟෭༷⁁ࢆ᭷ࡍࡿࡶࡢࢆసᡂࡋࡓ㸬ࡑࡢᑍἲࢆᅗ  ࡟♧ࡍ㸬ࢳ࣮ࣛ࡟ࡼࡾ 15Υࡢ෭༷Ỉࢆᚠ⎔ࡉࡏࡿࡇ࡜࡟ࡼࡾࢲ࢖ࢆ෭༷ࡍࡿ㸬ࡲࡓ㸪㏻ᖖࡢヨ㦂࡟ࡣ㸪෭༷⁁ࡀ↓࠸࣮࣋ࢫཬࡧࢲ࢖ࢆ⏝࠸࡚ヨ㦂ࢆ⾜࠺㸬ヨ㦂᪉ἲホ౯ヨ㦂ᶵࡢᴫせ㺃ホ౯ヨ㦂ᶵࡢᵓᡂ⇕㛫₶⁥ᛶホ౯ヨ㦂ᶵࡢᴫせࢆᅗ  ࡟♧ࡍ㸬ࡇࡢヨ㦂㸨ᮾி㟁ᶵ኱ᏛᕤᏛ㒊ᶵᲔᕤᏛ⛉ࠉ෸ᩍᤵ㸨ᮾி㟁ᶵ኱ᏛᕤᏛ㒊࣭෸ᩍᤵヨ㦂ᮦᩱࢆᙇຊ⿦⨨࡟ࢭࢵࢺࡋ㸪࢔ࣝࢦࣥ㞺ᅖẼ࡟ไᚚࡋࡓ㉥እ⥺▐㛫ຍ⇕⅔࡟ࡼࡾヨ㦂ᮦᩱࢆຍ⇕ࡍࡿ㸬ຍ
⇕⅔ ᗘ   ࡛ヨ㦂∦ ᗘࡀᆒ୍࡟࡞ࡿࡲ࡛ಖᣢࡋ࡚㸪ヨ㦂ᮦᩱࢆ୍ᐃ㏿ᗘ ( ࡛⛣ືࡉࡏࡿ㸬 ᗘᆒ୍㒊ࡀ㔠ᆺࢆ
㏻㐣ࡋࡓᚋ㸪ᅽ⦰Ⲵ㔜 ' ࡀ࠿ࡿࡼ࠺࡟タᐃࡍࡿ㸬ᦶ᧿ಀᩘࡣᅽ⦰Ⲵ㔜 ' ࡜ᘬᙇࡾⲴ㔜   ࡼࡾ⟬ฟࡉࢀ㸪

-65-

200s ᚋ࡟ࡣຍ⇕⅔ෆࡢ 3 Ⅼ࡛ ᗘࡀᆒ୍࡟࡞ࡾ㸪970Υ
⛬ᗘ࡛༑ศ࣮࢜ࢫࢸࢼ࢖ࢺ໬ࡋ࡚࠸ࡿ㸬ࡲࡓᅗ 3b ࡼࡾ㸪ヨ㦂ᮦᩱࡀ㔠ᆺ࡬⛣ືࡍࡿ㛫࡟ ᗘࡀୗࡀࡾ㸪ᘬᢤࡁ᫬ࡢ ᗘࡣຍ⇕⅔ ᗘ   ๓ᚋ࡟࡞ࡗ࡚࠸ࡿ㸬

60
36

20
6R512

3

130

1919ᐇ㦂᮲௳ຍ⇕⅔ࡢタᐃ ᗘ  f ࡣ 720°C ࡜ࡋ㸪ᘬᢤࡁ㏿ᗘ 10mm/s
࡛㸪ᢲ௜ࡅⲴ㔜ࢆ 3.5kN ࡜ࡋ࡚ᘬᢤࡁࢆ⾜ࡗࡓ㸬a)ࢫࢣ ࣮ࣝཌ ࡉ࠾ࡼࡧࡵࡗ ࡁ ᒙ  ⅔ෆࡢ ࢔ ࣝࢦࣥࡢ ὶ㔞ࢆ࠾ࡼࡧ㸪ಖᣢ᫬㛫ࢆ 180 - 300s ࡛ኚ໬ࡉࡏࡿࡇ࡜࡛〄ᮦࡢࢫࢣ࣮ࣝཌࡉࢆ 10, 30, 50, 80μm ࡟ㄪᩚࡋࡓ㸬ࡵࡗࡁᮦࡣಖᣢ᫬㛫 180s ࡛ Ar ࢞ࢫᅽࡣ 0.1MPa ࡜ࡋࡓ㸬ຍ⇕᮲௳࡜ࢫࢣ࣮ࣝཌࡉ㸪⾲㠃⢒ࡉࡢ୍ぴࢆ⾲  ࡟♧ࡍ㸬ຍ⇕ᚋࡢࡵࡗࡁᮦࡢࡵࡗࡁᒙࡢ᩿㠃⤌⧊ࢆᅗ 4 ࡟♧ࡍ㸬ᅗ  ࡼࡾ Al-Si ࡵࡗࡁᒙࡣຍ⇕୰࡟⁐⼥ࡏࡎ࡟㸪5 ᒙ࠿
ࡽᡂࡿ Fe-Al ྜ㔠┦࡜࡞ࡗ࡚࠸ࡿ㸬ࡇࡢࡵࡗࡁᒙࡢ⤌ᡂࡣ⪏㣗ᛶ㸪ሬ⿦ᛶ࡟ඃࢀ࡚࠾ࡾ 12) 㸪ᐇࣉࣟࢭࢫࡣࡇࡢࡼ
࠺࡞⾲㠃≧ែ࡛⾜ࢃࢀ࡚࠸ࡿ㸬13

 (a) ࢲ࢖2x13.5䜻䝸,䝄䜾䝸῝䛥9.5

       

4xM6 ῝䛥1060
44435

2xM5

⾲  ຍ⇕᮲௳࡜ࢫࢣ࣮ࣝཌࡉ࡜⾲㠃⢒ࡉ(b)࣮࣋ࢫᅗ  ෭༷㔠ᆺᑍἲḟᘧ࡛♧ࡉࢀࡿ㸬          2'P〄ᮦAl-SiAr࢞ ࢫ ᅽ /MPa0.10.2⥲ ຍ⇕ ᫬ 㛫 /s

240240240280360

ࢫ ࢣ࣮ ࣝ ཌ ࡉ /m-

10305080

⾲ 㠃⢒ ࡉ , Ra/m2.87

0.99

1.36

1.45

1.620.1(1)㺃ヨ㦂ᮦᩱࡢຍ⇕≉ᛶ

20Pmᅗ  Al-Si ࡵࡗࡁ 22MnB5 ᮦࡢຍ⇕ᚋࡢ⤌⧊෗┿b)ᕤල ⾲㠃⢒ ࡉ ࢚࣓࣮ࣜ ⣬ࢆ⏝࠸࡚㸪ᘬᢤࡁ᪉ྥ࡟ᑐࡋ࡚ᆶ┤࡟◊☻ࡋࡓ㸬ᕤල⢒ࡉࡣ Ra = 0.07, 0.2, 0.5μm
࡟ㄪᩚࡋࡓ㸬ᕤල⾲㠃ࣉࣟࣇ࢕࣮ࣝࢆᅗ  ࡟♧ࡍ㸬0-2o

Tf=720 C
800
600

Furnace temperature400
a: 150mm
b: 300mm
c: 470mm

200
00100
200
Time (s)300

o0.20.4
Distance /mm

0.6600400

a: 150mm
b: 300mm
c: 470mm200

0 100 200 300 400 500 600 700 800
Sliding distance / (mm)-20.2(b) 0.2μmRa

0-20.20.40.6
Distance /mm(c) 0.5μmRaᅗ  ᕤල⾲㠃⢒ࡉ(a)᪼        (b)⛣ື᫬ᅗ  ຍ⇕≉ᛶ(㠀ࡵࡗࡁ 22MnB5 㗰ᯈ)-66-0.40.6
Distance /mm

2-40.000㻌

4800

2-40.00.8(a) 0.07μmRa1000 Tf=720 C

Surface roughness /PmoTemperature of㻌 workpiece ( C)oTemperature of workpiece ( C)

1000

㻌

Surface roughness /Pm

2-40.0㻌

44
Surface roughness /Pm

ヨ 㦂 ᮦ ᩱ ࡟ Al-Si ࡵ ࡗ ࡁ ( ࡵ ࡗ ࡁ ᮦ ) ࡜ 㠀 ࡵ ࡗ ࡁ ( 〄ᮦ)22MnB5(0.22%C, 1.2%Mn, 0.002%B)㗰ᯈࢆ⏝࠸ࡓ㸬ヨ㦂∦ࢧ࢖ࢬࡣᖜ 22mm㸪ཌࡉ 2.3mm㸪㛗ࡉ 2000mm ࡜ࡋࡓ㸬ヨ 㦂ᮦ ᩱ (〄ᮦ)ࢆ ຍ ⇕ ⅔ ෆ ࡛ ຍ⇕ ࡋ ᮦ ᩱ ᗘ ࡀ ୍ ᐃᗘ࡟࡞ࡗࡓᚋ࡟ᐇ㦂ࢆ⾜࠺ᚲせࡀ࠶ࡿࡓࡵ㸪ຍ⇕⅔ෆ࡛ࡢヨ㦂∦ࡢ ᗘ≉ᛶࢆㄪ࡭ࡓ㸬ຍ⇕⅔ ᗘ  ࢆ 720°C࡜タᐃࡋ㸪1 ศ㛫࡛┠ᶆ ᗘ࡟฿㐩ࡉࡏ㸪ࡑࡢ ᗘࢆ⥔ᣢࡍࡿࡼ࠺࡟ไᚚࡋࡓሙྜࡢヨ㦂∦ࡢ ᗘኚ໬ࢆ ᐃࡋࡓ㸬ࡲࡓ㸪ᐇ㝿࡟㔠ᆺ࡟ධࡾᘬᢤ࠿ࢀࡿ᫬ࡢ ᗘࢆㄪ࡭ࡿࡓࡵ࡟㸪ヨ㦂∦ࡀ୍ᐃ ᗘ࡟฿㐩ᚋ㸪㏿ᗘ 10mm/s ࡛㔠ᆺ࡬⛣ືࡉࡏࡓሙྜࡢヨ㦂∦ ᗘ࡜⛣ື㊥㞳ࡢ㛵ಀࡶᐃࡍࡿ㸬࡞࠾㸪ヨ㦂∦ࡢ ᐃⅬࡣຍ⇕⅔ฟཱྀ࠿ࡽ 150㸪
300㸪470mm ࡢ 3 Ⅼ࡛㸪ࡑࢀࡒࢀࡢⅬ࡟ K ⇕㟁ᑐࢆࢫ࣏ࢵࢺ⁐᥋ࡉࡏ࡚ヨ㦂ᮦᩱࡢ ᗘኚ໬ࢆ ᐃࡋࡓ㸬ࡑࢀࡒࢀࡢ ᐃ⤖ᯝࢆᅗ  ࡟♧ࡍ㸬ᅗ 3a ࡼࡾ㸪ຍ⇕㛤ጞ࠿ࡽ

0.80.8ࡉ ࡀ 0.07μmRa ࡢ ࡜ ࡁ ࡣ ࢫ ࢣ ࣮ ࣝ ཌ ࡉ ࡀ 50μm ௨ ୗ ࡟ ࠾࠸࡚ࢫࢣ࣮ࣝཌࡉࡀⷧࡃ࡞ࡿ࡟ࡘࢀ࡚ᦶ᧿ಀᩘࡣቑຍ
ࡋ࡚࠸ࡿ㸬ᅗ  ࡟ᕤල⢒ࡉ 0.07, 0.5mRa ࡛ࢫࢣ࣮ࣝཌࡉ 10, 50m
ࡢヨ㦂᮲௳࡛ࡢᘬᢤࡁᚋࡢヨ㦂∦⾲㠃෗┿ࢆ♧ࡍ㸬ᅗ 8ࡼࡾᕤල⢒ࡉ 0.07mRa ࡛ࢫࢣ࣮ࣝࡀⷧ࠸࡜ࡁ࡟ᦶ᧿ಀᩘࡀቑຍࡍࡿࡢࡣ㸪῝࠸ࢫࢡࣛࢵࢳ⑞࡟㉳ᅉࡋ࡚࠸ࡿࡇ
࡜ࡀศ࠿ࡿ㸬c)₶⁥ ᮲ ௳  ヨ 㦂 ࡣ 㸪 ࢻ ࣛ ࢖ ࠾ ࡼ ࡧ ₶ ⁥ ᮲ ௳ ୗ࡛⾜ ࡗࡓ㸬₶⁥๣ࡣ⇕㛫㘫㐀⏝ⓑⰍ⣔₶⁥๣ࢆ⏝࠸ࡓ㸬ᕤලࢆ
150°C ࡟ຍ⇕ࡋ㸪20㸣࡟ᕼ㔘ࡋࡓ₶⁥๣ࢆ྿ࡁ௜ࡅࡿࡇ࡜࡛㸪ᕤල⾲㠃࡟௜╔ࡉࡏࡓ㸬d)㔠ᆺ ᗘ 〄ᮦ࡟࠾࠸࡚㸪ࢫࢣ࣮ࣝཌࡉ 30μm㸪ᕤල⾲㠃⢒ࡉ 0.07, 0.2μmRa㸪ࢻࣛ࢖᮲௳࡛෭༷⁁ࢆ᭷ࡍࡿ㔠ᆺࢆ⏝࠸࡚ヨ㦂ࢆ⾜ࡗࡓ㸬ᐇ㦂⤖ᯝ࡜⪃ᐹ㺃 〄ᮦ࡛ࡢ⤖ᯝ ࢻࣛ࢖᮲௳࡛ࡢᦶ᧿ಀᩘ  ᅗ  ࡟ 0.2μmRa ࡢ ⾲ 㠃 ⢒ ࡉ ࢆ ࡶ ࡘ ᕤ ල ࢆ ⏝ ࠸ ࡚ ࢻ ࣛ࢖ ᮲ ௳ ࡛ ࢫ ࢣ ࣮ ࣝ ཌ ࡉ 30μm ࡢ ヨ 㦂 ∦ ࢆ ᘬ ᢤ ࡁ ࠸ ࡓ ࡜ࡁ ࡢ ᦶ ᧿ ಀ ᩘ ࡜ ᘬ ᢤ ࡁ ㊥ 㞳 ࡢ 㛵 ಀ ࢆ ♧ ࡍ 㸬ᅗ 6 ࠿ ࡽ ᘬ ᢤࡁ ㊥ 㞳 ࡀ 15mm ࢆ ㉺ ࠼ ࡿ ࡜ ᦶ ᧿ ಀ ᩘ ࡣ ࡯ ࡰ ୍ ᐃ ࡛ ࠶ ࡿࡇ ࡜ ࡀ ࢃ ࠿ ࡿ 㸬௚ ࡢ ⾲ 㠃 ⢒ ࡉ ࡢ ᕤ ල ࡢ ሙ ྜ ࡶ ࡇ ࡢ ᅗ ࡜ ྠᵝ ࡟ ᦶ ᧿ ಀ ᩘ ࡣ ᘬ ᢤ ࡁ ㊥ 㞳 20mm ࢆ ㉺ ࠼ ࡿ ࡜ ࡯ ࡰ ୍ ᐃ࡛ ࠶ ࡗ ࡓ 㸬 ࡇ ࡢ ⤖ ᯝ ࠿ ࡽ ᦶ ᧿ ಀ ᩘ ࡢ ᐃ ್ ࡣ ᘧ (2)࡟ ♧ࡍ ࡼ ࠺ ࡟ 㸪 ᘬ ᢤ ࡁ ㊥ 㞳 20mm ࠿ ࡽ 40mm ࡢ ᖹ ᆒ ್ ࡜ ࡋ 㸪ᖹᆒᦶ᧿ಀᩘ್࡜ᐃ⩏ࡍࡿࡇ࡜࡟ࡋࡓ㸬
21P³2  1 1

 (2)ࡇ ࡇ ࡛ ࡣ 㸪  1 =20mm㸪  2 =40mm ࡛ ࠶ ࡿ 㸬㻌

0.60.50.4
㻌

Coefficient of friction P

0.7

0.30.2oDry condition 7I=720 C
Surface roughness of die 0.2PmRa
Scale thickness 30Pm

0.1
0.00102030
40Sliding distance /mm5060

ᅗ  ᦶ᧿ಀᩘ࡜ᘬᢤࡁ㊥㞳ࡢ㛵ಀ(〄ᮦ㸪ࢻࣛ࢖)ᅗ  ࡟ྛᕤල⾲㠃⢒ࡉ࡟࠾ࡅࡿᦶ᧿ಀᩘ࡜ࢫࢣ࣮ࣝཌ ࡉ ࡢ 㛵 ಀ ࢆ ♧ ࡍ 㸬 ᕤ ල ⾲ 㠃 ⢒ ࡉ ࡀ 0.2, 0.5μmRa ࡢ ࡜ࡁ ࡣ 㸪ᦶ ᧿ ಀ ᩘ ࡀ ࢫ ࢣ ࣮ ࣝ ཌ ࡉ ࡟ ᙳ 㡪 ࢆ ཷ ࡅ ࡎ ࡟ ࡯ ࡰ ୍ᐃ ࡛ ࠶ ࡿ ࡇ ࡜ ࢆ ♧ ࡋ ࡚ ࠸ ࡿ 㸬ࡘ ࡙ ࠸ ࡚ 㸪ᕤ ල ⾲ 㠃 ⢒ ࡉ ࡀ ₶⁥᮲௳ୗ࡛ࡢᦶ᧿ಀᩘ  ᅗ  ࡟ 0.2mRa ࡢ⾲㠃⢒ࡉࢆࡶࡘᕤලࢆ⏝࠸࡚₶⁥᮲௳࡛ࢫࢣ࣮ࣝཌࡉ 30m ࡢヨ㦂∦ࢆᘬᢤࡁ࠸ࡓ࡜ࡁࡢᦶ
᧿ಀᩘ࡜ᘬᢤࡁ㊥㞳ࡢ㛵ಀࢆ♧ࡍ㸬ࡇࡢᅗ࠿ࡽᘬᢤࡁ㊥㞳ࡀ 15mm ࢆ㉺࠼ࡿ࡜ࢻࣛ࢖᮲௳࡜ྠᵝ࡟ᦶ᧿ಀᩘࡣ࡯ࡰ୍ᐃ࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿ㸬ᅗ  ࡟ྛᕤල⾲㠃⢒ࡉ࡟࠾ࡅࡿᦶ᧿ಀᩘ࡜ࢫࢣ࣮ࣝཌࡉࡢ㛵ಀࢆ♧ࡍ㸬ᕤල⾲㠃⢒ࡉࡀ 0.2mRa ࠾ࡼࡧ 0.5mRa ࡢ࡜ࡁࡣ㸪ࢫࢣ࣮ࣝཌࡉࡀ 50m ࡲ࡛ࡣᦶ᧿ಀᩘࡀࢫࢣ࣮ࣝཌࡉ࡟ᙳ㡪ࢆཷࡅࡎ࡟࡯ࡰ୍ᐃ࡛࠶ࡾ㸪ࢫࢣ࣮ࣝཌࡉࡀ 80m ࡟࡞ࡿ࡜ᦶ᧿ಀᩘࡀ኱ࡁࡃ࡞ࡿ㸬୍᪉㸪ᕤල⾲㠃⢒ࡉ
0.07mRa ࡢ࡜ࡁࡣࢫࢣ࣮ࣝཌࡉࡀ 10m ࡢ࡜ࡁᦶ᧿ಀᩘࡀᑠࡉࡃ࡞ࡿ㸬ᅗ  ࡟ᕤල⾲㠃⢒ࡉ 0.5mRa ࡛ࢫࢣ࣮ࣝཌࡉ 10, 30, 50, 80m ࡛ࡢヨ㦂∦⾲㠃෗┿ࢆ♧ࡍ㸬ᅗ
11 ࠿ ࡽ ᕤ ල ࡜ ヨ 㦂 ∦ ࡢ ┿ ᐇ ᥋ ゐ 㠃 ✚ ࡣ ࢫ ࢣ ࣮ ࣝ ࡀ ཌ ࡃ࡞ࡿ࡯࡝ῶᑡࡋ࡚࠸ࡿࡇ࡜ࡀศ࠿ࡿ㸬┿ᐇ᥋ゐ㠃✚ࡢῶᑡࡣ ᥋ゐᅽຊࡢ ቑ ຍࢆᘬࡁ ㉳ࡇࡋ, ₶⁥ 㡿ᇦ࠾ࡼࡧ₶⁥⭷ࡢཌࡳࢆῶᑡࡉࡏ㸪⤖ᯝ࡜ࡋ࡚ᦶ᧿ಀᩘࡣࢫࢣ࣮ࣝཌࡉࡢቑຍ࡟క࠸ቑຍࡍࡿ㸬㻌

0.7
oefficient of friction P

Mean coefficient of friction PPoLubricated condition 7I=720 C
Surface roughness of die 0.2PmRa
Scale thickness 30Pm

0.60.60.5
0.40.3o0.110mm(d)ᅗ  ᘬᢤࡁᚋࡢ⾲㠃෗┿(〄ᮦ㸪ࢻࣛ࢖)ᕤල⾲㠃⢒ࡉ (a), (b) 0.07, (c), (d) 0.5mRaࢫࢣ࣮ࣝཌࡉ: (a), (c) 10m, (b), (d) 50m

0.70.210mm(c)

10mm(b)Dry condition 7I=720 C
Surface roughness of die
0.07 PmRa
0.2 PmRa
0.5 PmRa

2030 40 50 60
Scale thicknes /Pm

0.4
0.3
0.2
0.1
0.00.0100.5

㻌

P10mm(a)70080

10203040Sliding distance /mm5060

ᅗ  ᦶ᧿ಀᩘ࡜ᘬᢤࡁ㊥㞳ࡢ㛵ಀ(〄ᮦ㸪₶⁥)ᅗ  ࢫࢣ࣮ࣝཌࡉ࡜ᦶ᧿ಀᩘࡢ㛵ಀ(〄ᮦ㸪ࢻࣛ࢖)-67-࡜ᕤල⾲㠃⢒ࡉࡢ㛵ಀࢆᅗ  ࡟♧ࡍ㸬ᅗ 13 ࡼࡾ㸪ࢻࣛ࢖᮲௳࡛⾜ࡗࡓሙྜ࡛ࡣ㸪ᦶ᧿ಀᩘࡀᕤල⾲㠃⢒ࡉ࡟࡯࡜ࢇ࡝ᙳ㡪ࢆཷࡅࡎ࡟࡯ࡰ୍ᐃ࡛࠶ࡿࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬₶⁥᮲௳࡛ࡣᅗ 13 ࡼࡾ㸪ᕤල⾲㠃⢒ࡉࡀ 0.07mRa ࠿ࡽ 0.2mRa ࡲ࡛ቑຍࡍࡿ࡟ࡘࢀ࡚ᦶ᧿ಀᩘࡀ 0.2 ࡲ࡛పୗࡋ㸪0.2mRa ࠿ࡽ 0.5mRa ࡲ࡛ቑຍࡍࡿ࡟ࡘࢀ࡚ᦶ᧿ಀᩘࡀቑຍࡋ࡚࠸ࡿ㸬ᦶ᧿ಀᩘࡣᕤල⾲㠃⢒ࡉࡢᙳ㡪ࢆཷࡅ㸪0.2mRa ⛬ᗘࡢ⾲㠃⢒ࡉࢆࡶࡘᕤලࡢᦶ᧿ಀᩘࡀ
0.2 ࡜ప࠸್࡜࡞ࡗࡓ㸬㻌Mean oefficient of friction PP0.7o

0.6
0.5

Lubricated condition 7I=720 C
Surface roughness of die
0.07 PmRa
0.2 PmRa
0.5 PmRa

0.4
0.3
0.20.1㻌

0.02030 40 50 60
Scale thickness /Pm70

0.780
Mean oefficient of friction PP10ᅗ  ࢫࢣ࣮ࣝཌࡉ࡜ᦶ᧿ಀᩘࡢ㛵ಀ(〄ᮦ㸪₶⁥)



20μm

20μm
(a)

0.6
0.5
0.4
0.30.2oAl-Si coated 7I=720 C
Dry
Lubricated0.1
0.0
0.0(b)

0.1

0.2
0.3
0.4
0.5
Surface roughness /PmRa

0.6ᅗ  ᕤල⾲㠃⢒ࡉ࡜ᦶ᧿ಀᩘࡢ㛵ಀ(ࡵࡗࡁᮦ)$O6L ࡵࡗࡁᮦ࡟㛵ࡍࡿ⪃ᐹ
20μm

20μm(c)(d)ᅗ  ᘬᢤࡁᚋࡢ⾲㠃ᛶ≧(ᕤල⾲㠃⢒ࡉ 0.5mRa)ࢫࢣ࣮ࣝཌࡉ(a) 10, (b) 30, (c) 50 , (d) 80m㺃෭༷ᕤල
෭༷ࡢ᭷↓࡟ࡼࡿᖹᆒᦶ᧿ಀᩘࡢẚ㍑ࢆᅗ  ࡟♧ࡍ㸬ᅗ 12 ࠿ࡽᕤල⾲㠃⢒ࡉࡀ 0.2μmRa ࡢሙྜ㸪ᦶ᧿ಀᩘࡀపୗࡋ࡚࠸ࡿࡇ࡜࠿ࡽ㸪᥋ゐ⏺㠃࡛ࡢ ᗘࡀୖ᪼ࡍࡿ࡜ᦶ᧿ಀᩘࡶቑຍࡍࡿ࡜⪃࠼ࡽࢀࡿ㸬ᕤල⾲㠃⢒ࡉࡀ
0.07μmRa ࡢሙྜ㸪෭༷ࡀ࠶ࡗ࡚ࡶ↝ࡁ௜ࡁࡀ⏕ࡌࡿࡓࡵ㸪෭༷ࡀ↓࠸ሙྜ࡜ࡢᕪࡀᑠࡉ࠸㸬ࡵࡗࡁᮦ࡛ࡣ㸪ࢻࣛ࢖᮲௳࡛ᦶ᧿ಀᩘࡣᕤල⾲㠃⢒ࡉࡢᙳ㡪ࢆ࡯࡜ࢇ࡝ཷࡅࡎ࡟࡯ࡰ୍ᐃ࡜࡞ࡗࡓ㸬ᅗ  ࡟⾲㠃⢒ࡉ 0.2mRa ࡢᕤලࡢᘬᢤࡁᚋࡢ⾲㠃෗┿࡜⾲㠃ࣉࣟࣇ࢕࣮ࣝࢆ♧ࡍ㸬EDX ศᯒ࡛ࡣᅗ 13b ࡢ㯮࠸㒊ศ(ගᏛ 㢧 ᚤ 㙾 ࡛ ࡣ ⷧ ࠸ ࢢ ࣞ ࣮ )࡛ ࡣ ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ࡀ ከ ࡃ ᳨ ฟࡉࢀࡓ㸬ᅗ 14c ࡢࣉࣟࣇ࢕࣮ࣝ࠿ࡽᕤල⾲㠃࡟ཌࡉᩘ mࡢ ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ᒙ ࡀ ௜ ╔ ࡋ ࡚ ࠸ ࡿ ࡇ ࡜ ࡀ ศ ࠿ ࡿ .࢔ ࣝ ࣑ࢽ࣒࢘ᒙࡢඹ㔠࡟ࡼࡾ㧗࠸ᦶ᧿ಀᩘ್࡜࡞ࡗࡓ࡜ᛮࢃࢀ
ࡿ㸬⾲㠃⢒ࡉ 0.07, 0.5mRa ࡢᕤලࡶྠᵝࡢ⤖ᯝ࡛࠶ࡗࡓ㸬㻌 PP

Without coolingWith cooling

0.6

PP(a) ගᏛ㢧ᚤ㙾     (b) SEM

0.5

Profile height (m)Mean coefficient of friction Pm

0.7

0.4
0.3
0.2

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0.1

0 .2

0 .4

0 .6

0 .8

1P ro fi le le n g th ( m m )0.0(c)⾲㠃ࣉࣟࣇ࢕࣮ࣝᅗ  ヨ㦂ᚋࡢᕤල⾲㠃෗┿(ࡵࡗࡁᮦ㸪ᕤල⾲㠃⢒ࡉ 0.2mRa㸪ࢻࣛ࢖)

Surface roughness of die Surface roughness of die
0.2PmRa
0.07PmRa㻌ᅗ 12 㔠ᆺ෭༷ࡢ᭷↓࡟ࡼࡿᦶ᧿ಀᩘࡢẚ㍑(〄ᮦ㸪ࢻࣛ࢖)$O6L ࡵࡗࡁᮦ   ᦶ᧿ಀᩘࢻࣛ࢖࠾ࡼࡧ₶⁥᮲௳࡛ࡢ Al-Si ࡵࡗࡁᮦࡢᦶ᧿ಀᩘᅗ  ࡟ࡵࡗࡁᮦࡢ₶⁥᮲௳࡛⾲㠃⢒ࡉ 0.2mRa ࡢᕤලࡢᘬᢤࡁᚋࡢ⾲㠃෗┿࡜⾲㠃ࣉࣟࣇ࢕࣮ࣝࢆ♧ࡍ㸬ᅗ
15 ࡼ ࡾ ࢔ ࣝ ࣑ ࢽ ࢘ ࣒ ᒙ ࡢ ௜ ╔ ࡣ ᑡ ࡞ ࠸ ࡇ ࡜ ࡀ ☜ ㄆ ࡛ ࡁࡿ㸬ࡉࡽ࡟㸪௜╔㒊ศࡣ EDX ศᯒࡼࡾ㸪Al, O ཎᏊ࡟ࡼ-68-ࡾ⏕ᡂࡉࢀ࡚࠸ࡿ㸬₶⁥᮲௳࡛ᦶ᧿ಀᩘࡀపࡃ࡞ࡗࡓࡢࡣ㸪࢔࣑ࣝࢽ࣒࢘ᒙࡢ௜╔≀࡜₶⁥Ἔࡢῧຍ๣ࡢᡂศ࡜ࡢ཯ᛂ࡟ࡼࡾ⏕ᡂࡋࡓ཯ᛂ≀ࡀᦶ᧿ಀᩘࢆపୗࡉࡏࡓ࡜ᛮࢃࢀࡿ㸬ᕤ ල ⾲ 㠃 ⢒ ࡉ ࡀ 0.2 μmRa ࡛ ࡢ ᦶ ᧿ ಀ ᩘ ࡀ పࡃ ࡞ ࡗ ࡓ せ ᅉ ࡜ ࡋ ࡚ ࡣ 㸪ᕤ ල ⾲ 㠃 ⢒ ࡉ 0.07μmRa ࡛ ࡣ ₶⁥ ๣ ࡀ ࢺ ࣛ ࢵ ࣉ ࡉ ࢀ ࡞ ࠸ 㸪 ࡲ ࡓ ᕤ ල ⾲ 㠃 ⢒ ࡉ 0.5μmRa࡛ ࡣ 㸪ᮦ ᩱ ࠾ ࡼ ࡧ ᕤ ල ࡢ ✺ ㉳ ࡢ ᥋ ゐ ࡀ ㉳ ࡇ ࡾ ࡸ ࡍ ࠸ ࡓ ࡵᦶ ᧿ ಀ ᩘ ࡀ 0.2 μmRa ࡟ ẚ ࡭ ࡚ 㧗 ࡃ ࡞ ࡗ ࡓ ࡜ ⪃ ࠼ ࡽ ࢀ ࡿ 㸬P PPP㸬ࡲ࡜ࡵ✀ࠎࡢᕤල⾲㠃⢒ࡉ㸪ࢫࢣ࣮ࣝཌࡉ࡟࠾࠸࡚㸪⇕㛫ᖹᯈᘬᢤ࡟ࡼࡿ࣍ࢵࢺࣉࣞࢫࡢ₶⁥≉ᛶホ౯ࢆ⾜࠸௨ୗࡢ⤖ᯝࢆᚓࡓ㸬1) 〄ᮦ࡛ࡣࢻࣛ࢖᮲௳ୗ࡛ࡣ㸪⾲㠃⢒ࡉࡀ 0.07mRa ࡢሙྜࢫࢣ࣮ࣝࡀⷧࡃ࡞ࡿ࡟ࡘࢀ࡚ᦶ᧿ಀᩘࡀୖ᪼ࡋࡓ㸬₶⁥๣ࢆ⏝࠸ࡓሙྜ㸪ᕤල⾲㠃⢒ࡉࡢᙳ㡪ࡣᑠࡉࡃ㸪ࢫࢣ࣮ࣝࡀཌࡃ࡞ࡿ࡟ࡘࢀ࡚㸪ᦶ᧿ಀᩘࡣୖ᪼ࡋࡓ㸬2) ࡵ ࡗ ࡁ ᮦ ࡛ ࡣ ᦶ ᧿ ಀ ᩘ 䛿䠈䝗䝷䜲᮲ ௳ 䛷䛿ᕤ ල ⾲ 㠃 䛻䜋䛸䜣䛹ᙳ㡪䛫䛪䛻䜋䜌 0.6 ⛬ᗘ䛷୍ᐃ䛸䛺䜚䠈₶⁥᮲௳䛷䛿኱ᖜ䛻పῶ䛥䜜䜛䠊ᕤල⾲㠃⢒䛥 0.2mRa 䛷 0.2 䛸ప䛔್䛻䛺䛳䛯䠊
3) ᐇ᧯ᴗ࡛⾜ࢃࢀ࡚࠸ࡿ㔠ᆺ෭༷ࡣᦶ᧿ಀᩘࡢపῶ࡟࠾࠸࡚ࡶຠᯝⓗ࡛࠶ࡿ㸬

Profile height (m)(a) ගᏛ㢧ᚤ㙾     (b) SEM
5432
1
0-1-2-3-4-5ㅰ㎡
ᮏ ◊ ✲ ࢆ 㐍 ࡵ ࡿ ࡟ ࠶ ࡓ ࡾ ◊ ✲ ຓ ᡂ ࢆ ࠸ ࡓ ࡔ ࠸ ࡓ (㈈ )ኳ
⏣㔠ᒓຍᕤᶵᲔᢏ⾡᣺⯆㈈ᅋ࡟῝ࡃឤㅰࡢពࢆ⾲ࡋࡲࡍ㸬
00.2

0.4

0 .6

0 .8

1

P r o fi le le n gt h (m m )(c)⾲㠃ࣉࣟࣇ࢕࣮ࣝᅗ  ヨ㦂ᚋࡢᕤල⾲㠃෗┿(ࡵࡗࡁᮦ㸪ᕤල⾲㠃⢒ࡉ 0.2mRa㸪₶⁥)ཧ⪃ᩥ⊩ $O6L ࡵࡗࡁᮦ࡜〄ᮦࡢẚ㍑
ᐇ᧯ᴗ࡛ࡣ㸪〄ᮦࡣ❅⣲㞺ᅖẼ࡛ຍ⇕ࡉࢀࡿࡓࡵࡑࡢ
ࢫࢣ࣮ࣝཌࡉࡣ 10㹼20μm ⛬ ᗘ ࡜ ࡞ ࡿ 㸬 ࢫ ࢣ ࣮ ࣝ ཌ ࡉ 㸪
10㸪30μm ࡢ 〄 ᮦ ࡜ ࡵ ࡗ ࡁ ᮦ ࡢ ྛ ᕤ ල ⾲ 㠃 ⢒ ࡉ ࡟ ࠾ ࡅ ࡿᦶ ᧿ ಀ ᩘ ࡢ ẚ ㍑ ࢆ ᅗ  ࡟ ♧ ࡍ 㸬 ࢻ ࣛ ࢖ ᮲ ௳ ࡛ ࡣ ࡵ ࡗ ࡁᮦ ࡢ ᦶ ᧿ ಀ ᩘ ࡀ 〄 ᮦ ࡟ ẚ ࡭ ࡚ 㧗 ࠸ ࡀ 㸪₶ ⁥ ๣ ࢆ ⏝ ࠸ ࡿ ࡇ࡜࡛୧⪅ࡢ㐪࠸ࡣ࡯࡜ࢇ࡝↓ࡃ࡞ࡿࡇ࡜ࡀศ࠿ࡿ㸬Dry

Mean oefficient of friction PP0.70.6Lubricated㻌
Al-Si coatd
Scale thickness 10Pm
Scale thickness 30Pm

0.5
0.4
0.3
0.2
0.1
0.0

0.5PmRa
0.07PmRa
0.2PmRa
Surface roughness of dieᅗ  ᕤල⾲㠃⢒ࡉ࡜ᦶ᧿ಀᩘࡢ㛵ಀ(〄ᮦ㸪ࡵࡗࡁᮦ)౛࠼ࡤ, H. Karbasian & A.E. Tekkaya: J. Mater. Proc.
Technol. (2010), 2103-2118.
2) S. Sikora & F.J. Lenze: Proc. IDDRG2006, 295-301.
3) M. Merklein & J. Lechler: J. Mater. Proc. Techn. 177(2006), 452-455.
4) Y. Dahan et al.,: Proc. IDDRG2006, 395-402.
5) J. Hardell, E.Kassfeldt & B.Prakash: Wear  (2008),788-799.
6) A. Yanagida, T. Kurihara & A. Azushima: J. Mater. Proc.
Technol.  (2010), 456-460.
7) A. Yanagida & A. Azushima: Annals of CIRP, -1
(2009), 247-250.
8) C. Dessain, P. Hein, J. Wilsius, L. Penazzi, C. Boher &J.Weikert: Proc. 1st Int. Conf. on Hot Sheet Metal
Forming of High- Strength Steel CHS2 (2008), 217-227.
9) J. Hardell, B.Prakash & K.Steinhoff: Steel Grips (2008) Suppl. CHS2, 69-76.
10) A. Yanagida, Y. Tanaka & A. Azushima: Proc. 3 rd CHS2,(2011), 369-376.
11) A. Azushima, K. Uda & A. Yanagida: J. Mater. Process.
Technol.  (2012), 1014-1021.
12) ᮎᗈṇⰾ㸪┿ᮌ⣧㸪ᴋぢ࿴ஂ㸪኱⚄ṇᾈ㸪ᐑ⭜ᑑᣅ:᪂᪥㕲ᢏሗ㸪 (2003), 15-20.
1)-69-