Каталог Iscar высокоточные развертки и метчики 2022 - страница 7

β¡ γ¡ REAMERS USER GUIDE ATTENTION: Cutting tools can break during use. b To avoid injury always use safety precautions a such as gloves, shields and eye protection. Assembly Instructions (BN5-BN9) First Assembly • Clean the toolholder pocket (Fig. 1) • Clean the reamer head clamping cone•Insert the clampingscrew into the holder and rotateLead Code /Parameterβ°a [mm] g° b [mm] it 2-3 turns in a clockwise direction (Fig. 2)•Clamp the reaming head on thescrew; note, BN8A 45° 0.5 ‫־‬ ‫־‬ and BN9 can be assembled only in a specific B 25° 1.07 ‫־‬ ‫־‬ position relative to the screw (rotate the head C 45° 0.5 8° 0.75 until locating the correct position) (Fig. 3) D 30° 0.5 4° 1.85 • Manually rotate the reaming head until E 45° 0.2 ‫־‬ ‫־‬ it sits firmly in the pocket F 90° ‫־‬ ‫־‬ ‫־‬ • Tighten with the special key (Fig. 4) G 75° 0.15 ‫־‬ ‫־‬ • Make sure there is no face gap between thetoolholder and the reaming head (Fig. 5)X Specially Tailored (undesignated) When choosing a reamer, it is important to select a lead geometry that Indexing covers the reaming allowance. • Release the reaming head with the key, turning in a counterclockwise direction until it rotates freely Reaming Allowance • Rotate another one turn by hand Reaming allowance is the stock material which should • Remove the reamer head from the tool; the be removed by reaming. It is recommended to leave clamping screw should remain inside!!! different reaming allowances depending on the workpiece • Clean the pocket of the toolholder (Fig. 1) material and the pre-hole quality. Pre-hole should be • Clean the cone on the new reamer head smooth and straight, without deep scratches on it. • Clamp the reaming head on the screw; note,BN8 and BN9 can be assembled only in aspecific position relative to the screw (rotate thehead until locating the correct position) (Fig. 3)•Manually rotate the reaming head. In the beginning itshould rotate without the screw and then (after 1/6 ofa turn) it should engage with the screw. Rotate until itsits firmly in the pocket. If the screw rotates togetherwith the reaming head from the beginning, remove thereaming head and open the screw another one turn.•Tighten with the special key(Fig.4)Complementary Grades (on request):IC30N cermet tipped, recommended for reamingthe following materials: non-alloyed (mild) steel, lowalloyed steel (<5% of alloying elements), free cuttingsteel, tempered steel (tensile strength <1100 N/mm2)and nodular iron (GGG40, GGG60, etc.)ID5 (PCD)recommended for high speed reaming of aluminum (specialcases). RN01 (DLC coating) recommended for reamingthe following materials: aluminum alloys (cast, wrought,etc.), brass, bronze and other nonferrous materials. • Make sure that there is no face gap between ØDR the toolholder and the reaming head (Fig. 5) Reaming 1 2 3 ØDP Pre-hole Hole Ø mm 4 5 Material < 9.5 9.5 -11.511.5 -13.5 13.5- 1616 -32 >32 Steel andCast Iron0.07-0.10 0.07-0.150.10-0.20 0.10-0.300.10-0.300.20-0.40mm/Ø Aluminumand Brass0.07- 0.10-0.100.150.15-0.25 0.20-0.300.20-0.400.20-0.50mm/Ø Δ - Reaming allowance Δ = ∅DR - ∅DP BN9: 21-23 N*m BN8: 17-20 N*m BN7: 13-15 N*m BN6: 8-10 N*m BN5: 7-8 N*m 317