Page 1399 - S.I.T.E.切削工具ガイドブックVol.4 非鉄金属用

ΦʔΤεδʔ 0) ਫ਼౓ʹ͍ͭͯ 0) -JNJU
ΦʔΤεδʔ 0)ਫ਼౓ʹ͍ͭͯɹ0) -JNJU
ग़యɿΦʔΤεδʔגࣜձࣾ
ग़యɿΦʔΤεδʔגࣜձࣾ
04(༻్ผλοϓ͸ɺॴఆͷΊͶ͡ਫ਼౓Λຬ଍͍ͯͨͩͨ͘͠Ίʹɺ֊ OSG applies a unique system of tap pitch diameter limits. We call it the
ஈࣜʹਫ਼౓͕ઃఆͯ͋͠Γɺ࡞ۀ৚݅ʹ߹ΘͤͯબఆͰ͖ΔΑ͏ɺಠಛ OH Limit System. Using the step method, you can select the best tap
ͷ0) ਫ਼౓ํࣜΛ࠾༻͓ͯ͠Γ·͢ɻ pitch diameter limits to match your work conditions.

0) ਫ਼౓ ݚ࡟࢓্͛ͷλοϓͷ΄ͱΜͲʹద༻͓ͯ͠Γɺ+*4 ڃͱಉ౳΋͘͠͸ಉ౳Ҏ্ͷਫ਼౓Λಛ௕ͱ͠ɺϐονʹΑΓ
ͭ͗ͷΑ͏ʹ༗ޮܘਫ਼౓Λ۠෼͍ͯ͠·͢ɻ
OH LIMIT ,
Most of OSG S ground f nished taps use this limit system. The limits are calculated as follows.

1ʽ ʢ ࢁҎ্ʣͷ΋ͷɹPʽ0.6ʢT.P.I.ʾ40ʣ 1ʾ ʢ ࢁҎԼʣͷ΋ͷɹPʾ0.7(T.P.I.ʽ36ʣ
্ͷڐ༰ࠩɿ ʴ ʷOɹ upper limit : 0.010+0.015ʷn ্ͷڐ༰ࠩɿ ʷOɹupper limit : 0.020ʷn
Լͷڐ༰ࠩɿ্ͷڐ༰ࠩʵ ɹlower limit : ʢupper limitʣʵ0.015 Լͷڐ༰ࠩɿ্ͷڐ༰ࠩʵ ɹlower limit : ʢupper limitʣʵ0.020
୯Ґ NN Unit : mmɹɹ ʢO 0) ൪߸ʣ ʢn=OH numberʣ ୯ Ґ N N nU : t i m m ɹɹʢO 0) ൪߸ʣ ʢn=OH numberʣ
˙ྫ .̏ʷ̌ ̑ ɹExample M3ʷ0.5
JISλοϓਫ਼౓ OHλοϓਫ਼౓ લJISΊͶ͡ਫ਼౓ JISΊͶ͡ਫ਼౓
JIS LIMITS OH LIMITS PREVIOUS JIS INTERNAL THREAD JIS INTERNAL THREAD
+125 +125
+120 3 7
ڃ H
+100 +100 +100 +100
༗ +85 OH6 ڃ Class 3 6
ɹ
2
ޮ +80 +70 OH5 +80 1 +80 5 H
ɹ
ܘ +60 +56 +55 OH4 ڃ Class 2 H
ớ
pitch dia.( Жm)
Жm ISO OH3 Class 1

Ờ +40 +35 +40 ISO 3 +40
+25 3ڃ +24 2 +25 OH2
+20 +18 2ڃ +15 ISO OH̍
ج४༗ޮܘ +6 ̍bڃ +6 +10 +8 1 +10
basic pitch dia. 0 ̍aڃ
-6
˙ྫ .̍̌ʷ̍ ̑ɹ Example M10ʷ1.5
+230 JISλοϓਫ਼౓ OHλοϓਫ਼౓ લJISΊͶ͡ਫ਼౓ JISΊͶ͡ਫ਼౓ +224
JIS LIMITS OH LIMITS PREVIOUS JIS INTERNAL THREAD +210 JIS INTERNAL THREAD
+210 H 7
+180 3 +180
ڃ 6
+160 H
༗ +140 +140 Class 3 +140
ɹ
2
ޮ +120 +120 ڃ H 5
ɹ
OH6
ܘ +100 +98 +100 Class 2
ớ ISO OH5
pitch dia.( Жm)
Жm +80 +70 3 +80 +80

Ờ OH4 1
+60 +55 ISO +60 OH3 ڃ
2
+40 +40 3ڃ +42 ISO +40 Class 1
+20 +22 2ڃ +20 1 +20 OH2
+7 ̍bڃ +7 +15 +14 OH̍
ج४༗ޮܘ 0 ̍aڃ
basic pitch dia. -8
˙ྫ ¢ ̍̏6/$ɹExample ½-̍̏UNC
JISλοϓਫ਼౓ OHλοϓਫ਼౓ ΊͶ͡ਫ਼౓
+240 JIS LIMITS OH LIMITS INTERNAL THREAD +246
+165
+160 1
+120 +120 +121 2 B
༗ OH6 3 B
ɹ
+100 +100 B
ޮ OH5
ɹ
ܘ +80 +80 OH4
ớ +65
pitch dia.( Жm)
Жm +60 +60

Ờ +45 3ڃ OH3
+40 +40
+30 2ڃ OH2
+20 ̍bڃ +15 +25 +20
+10 +10 OH̍
ج४༗ޮܘ 0 ̍aڃ
basic pitch dia. -10
G-20