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Technical information for Threading Technical information for Threading GRADE & THEIR APPLICATIONS Anvil Change Recommendation Grade Use TTIP 30 TTIM 45 TTIG 30 TTIN 30 Pitch A Some Pitch to Diameter combinations require an Anvil change. If an Anvil change TPI mm is required , use STM - R Anvils for EX- RH toolholders and for IN - LH boring bars . Use STM - L Anvils for IN - RH toolholders and for EX- LH boring bars. 2.5 10 5 I I i Special ACME 9 Holder v STUB ACME Required v/ < 7 TRAPEZ ( DIN 103) TiN coated , yellow color, the universal TiALN coated , black color ; Multi -Layer The grade designation is according to Ceramic grade , good toughness , the 3 8 AC Co oV// - AC V, * ROUND ( DIN 405) grade for general steel , recommended PVD coated for stainless steel & steel pressing thread inserts with new chip - collapse edge resistance and wear 3.5 7 £ ^ o rC / for rigid cutting conditional. medium machining breaker, compatible with all series of stainless steel & steel < HRC 50 medium machining resistance . It is good for ordinary steel finish to rough machining 4 6 CO /KZZ Co 'T/ ' RECOMMENDED SELECT FORTHREADING 5 5 ^/ Standard Anvil ( Supplied With Holder ) Workpieces p Stailess steel , Heat tesistant 6 4 Carbon steel , alloy steel 3.5 cast steel steel , Titanium alloy steel 8 3 10 2.5 iso 01 10 20 30 40 01 10 20 30 40 Change to anvil 12 2 16 1.5 > 77 STM - R 1 Nor STM - L 1 N misftm mm: PVD Coating 5 10 20 30 40 50 60 70 80 90 100 1 10 120 130 140 Inch: Pitch 0.25 0.50 0.75 1 1.25 1.50 2 2.50 3 4 5 Diameter 9 A Most applications use the standard Anvil supplied with the toolholder or boring bar. Ceramic IEKHB TPI mm If an Anvil change is required , use STM - R Anvils for EX- RH toolholders and for IN- LH boring bars. Use STM - L Anvils for IN - RH toolholders and for EX- LH boring bars. RECOMMEND CUTTING SPEED FORTHREADING 2.5 10 Q 05 . Vc ( m / min ) .

AC S V. / PARTIAL PROFILES 60 PARTIAL PROFILES 55 < 0.25% C Annealed 3 8 Required AC ISO > 0.25 % C Annealed A) UN Non - alloy steel and Cast steel , Free < 0.55% C Quenched & Tempered 70 - 150 120 - 180 110 - 210 150 - 250 / or # 0.55 % C Annealed Co BSPT P Quenched & Tempered 015 4 6 Steel Annealed 016 77 Low alloy steel ( alloying elements < 5 % ) Quenched & Tempered 60 - 90 80 - 130 90 - 140 150 -200 5 5 High alloy steel ( alloying elements > 5 % ) , cast steel Annealed 7 7 and tool steel Quenched & Tempered 50 - 60 60 - 80 70 - 90 100 -170 6 4 7 Ferric / Martensitic 3.5 777 Standard Anvil M Stainless steel & Cast steel Martensitic 50 - 80 90 -130 110 -160 100 -180 8 3 Z7Z ( Supplied With Holder) Stainless stee Austenitic 10 2.5 77 Ferritic / Pearlitic Cast iron Nodular ( GGG ) 60 - 90 100 - 130 120 - 150 150 - 250 12 2 Pearlitic 16 1.5 77 Ferritic Grey cast iron ( GG ) 65 - 85 120 - 130 140 - 150 170 - 270 Pearlitic mm: 5 10 20 30 40 50 60 70 80 90 100 1 10 120 130 140 Ferritic Malleable cast iron 60 - 85 100 - 130 110 - 140 150 - 250 Inch: 0.25 0.50 0.75 1 1.25 1.50 2 2.50 3 4 5 Diameter Pearlitic Not cureable Pitch A Most American Buttress and Sagengewinde applications and anvil change. Note that in many cases , Aluminum alloy wrought 450 - 600 260 - 830 700 -1000 Cured TPI mm a negative anvills required . If an Anvil change is required , use STM - R Anvils for EX- RH toolholders < 12 % Si Not cureable and for IN - LH boring bars. Use STM - L Anvils for IN - RH toolholders and for EX- LH boring bars. Aluminum - cast alloy 1° N Cured 150 - 350 200 - 500 280 - 750 2.5 10 AMERICAN BUTTERSS - A Non- ferrous alloy > 12 % Si >1% Pb High temperature Free cutting 9 Special SAGENGEWINDE ( DIN 513) Copper and copperalloy Brass 110 - 180 260 - 400 190 - 350 Holder Electrolytic Copper 8 Requirec 7=0.74 3 Duroplastics , Fiber Plastics Standard Anvil Non metallic 150 - 210 Hard Rubber 3.5 7 ( Supplied Std . anvil Bad With Holder) Calculation of N [ RPM ] Before Anvil change 4 6 Change to negative anvil STM - R 3 N or STM - L 3 N Replacing the standard anvil with 5 5 an anvil with negative angle vc x 1000 jiXDXn n - Revolution Per Minute [ min - 1 ] will eliminate side rubbing n= VC = 6 4 JI X D 1000 vc - Cutting Speed [ m / min ] 3.5 O D - Workpiece Diameter [ mm ] 8 3 10 2.5 Number of Passes 12 2 16 1.5 Correct Negative anvil mm 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 8.00 mm: Pitch 5 10 20 30 40 50 60 70 80 90 100 1 10 120 130 140 After Anvil change tpi 48 32 24 20 16 14 12 10 8 7 6 5.5 5 4.5 4 3 Inch: 0.25 0.50 0.75 1 1.25 1.50 2 2.50 3 4 5 Diameter No. of passes — 4 6 4- 7 4- 8 5-9 6- 10 7-12 7-12 8-14 9-16 10-18 11 - 18 1 1 - 1 9 12- 2 12- 20 12- 20 15- 24 cutting depth is calculated by total cutting depth divided into machining times ^