Каталог Sumitomo сверла и развертки - страница 104

• General Features SumiDrill WDX type has excellent cutting balance that provides stable hole drilling on a wide range of work materials from general steel to stainless steel and aluminum alloy. Available in three original chipbreaker styles, the WDX type features improved chip management and reduced cutting force for use in low rigidity set ups.

• Characteristics and Applications D Balanced Design Cutting force during machining is balanced between central and peripheral inserts, and the relative position of each insert are optimised to provide stable drilling. D Excellent Chip Control The chip control groove in the center of the breaker provides good chip control by controlling the direction of chip evacuation. D Versatile Tool for a Variety of Machining Applications Three separate purpose-designed breakers enable optimal drilling with a variety of different work materials in a variety of different conditions. Applicable to a variety of operations including hole expansion, spot facing, external turning, and internal boring. D Economical, Four-Cornered Insert Inserts can be used in both central and peripheral positions, with two corners for each position - a total of four corners - for excellent costeffectiveness.

Design

Cutting force of central insert 〜〜 that of peripheral insert

Chip management groove on each cutting edge

General Purpose Strong Edge Type Chip Management metal Appearance J

Figure

• Performance D Balanced Design (Comparison of ●Improved Chip Management

Solid Horizontal Component Values) ：

Drill WDX200D3S25(ø20.0) Balance is maintained at the entry and Work Material： SUS304 Special Cutting Conditions： v =130m/min, f=0.06mm/rev exit points, and drilling is stable. c

H=50mm, Wet Indexable SumiDrill WDX Type SumiDrill WDX Type Reamer Direction of drilling Brazed Others

Smooth No problems with smaller entry hole diameters at exit point Conventional and Competitor's Products Conventional and Competitor's Products

Direction of drilling

t Centr Central Insert al Inser al Inser Peripher t t Centr al Inser al Inser t Peripher

Peripheral Insert

D Finishing is easy because bottom of hole is almost flat

Bottom of hole after drilling with WDX200D3S25

Bottom of hole after drilling with conventional model (ø20)

Vibration at entry point Causes smaller hole (Causes insert chipping) diameter at exit point