Каталог Sumitomo сверла и развертки - страница 57

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Flat MultiDrill MDF Type Long Shank Type (L2D Type) for flat base drilling, hole expansion, and burr prevention in long overhang conditions! ●For drilling with long overhang and to avoid interference with the workpiece. * Drilling with long shank type drills require a prepared hole of the same diameter or a centering hole larger than the drill diameter. DC<6mm DC≤DMM DC DMM DC≥6mm DC>DMM DC DMM With Oil Hole (H3D Type/H5D Type) up to 5D deep hole drilling! ●Having internal coolant allows for deeper flat hole drilling. * Drilling with L/D=5 drills with oil holes require a prepared hole of the same diameter or a centering hole larger than the drill diameter. Deep Spot Facing Long Overhang Spot Facing 0.5 Tool: MDF0600H5D Tool: MDF0600H3D Hole Over Size (mm) MDF Able to Continue after 1,500 Holes 0.4 Work material: S50C ø6mm Work material: S50C Cutting Conditions: 0.3 Cutting Conditions: Entrance Hole Bottom vc=140m/min, f=0.15mm/rev, 0.2 vc=90m/min, f=0.1mm/rev, Competitor's Product Fracture at 1,247 Holes H=30mm(5D), Internal Coolant, H=18mm(3D), Internal Coolant, 0.1 Overhang 45mm, Prepared Hole Depth 3mm (ø6) Entrance Hole Bottom Overhang 35mm 0 0 1000 2000 MDF Competitor's Product Inclined Surface Drilling Controlling Burrs and Chips When Withdrawn Tool: MDF0500S2D Tool: MDF1000S2D Work material: SCM415 Work material: SS400 Cutting Conditions: Cutting Conditions: vc=65m/min, f=0.08mm/rev, vc=75m/min, f=0.12mm/rev, H=10mm, External MQL H=5mm, External MQL ■ Using Flat Drills, General-Purpose Drills, and Endmills Tool Flat Drill MDF Type General-Purpose Drill GS/HGS Type Endmill for Spot Facing GSXSLT Type J Drilling Concave Shape (2°to 3°Concavity) Convex Shape (180°) Convex Shape (135°) Hole Bottom Shape Solid Nearly Flat Convex Shape (Concave Shape) Concave Shape (Cannot be used for prepared hole drilling) Special 0~0.5° 2~3° Indexable Within 1D, limited to low feed rate Drilling in Flat Surfaces Feed rate approximately half of a general-purpose drill Best Feed rate one-fifth or lower of a general-purpose drill Reamer Within 1D, limited to low feed rate Brazed Drilling in Non-Flat Surfaces Optimal (Within 2D is recommended) Unusable Feed rate one-two or lower of a Flat Drill Others Traversing Unusable Unusable Best ■ Series Coolant Supply Cat. No. Diameter Range (mm) Drilling Depth (L/D) Content MDF□□□□S2D ø0.3 to 20.0 Up to 2 132 items External MDF□□□□L2D ø3.0 to 20.0 Up to 2 107 items MDF□□□□H3D ø3.0 to 16.0 Up to 3 99 items Internal MDF□□□□H5D ø3.0 to 16.0 Up to 5 99 items J35