Sumitomo 16JYDSC Pcbn Turning Insert BN7000 Grade

Product Description

The SUMITOMO 16JYDSC is a PCBN (polycrystalline cubic boron nitride) turning insert designed for high-speed, high-precision machining of hard and abrasive workpiece materials. Built to the CCGA insert style with an 80-degree diamond (rhombic) shape, it carries the BN7000 manufacturer grade and features a 3/8 inch inscribed circle and a 1/64 inch corner radius. The insert holds positive rake and positive side clearance geometry, making it well-suited for finish and semi-finish turning operations where surface integrity and tool life are critical. It is installed by CNC machinists and toolroom technicians in production turning centers.

This insert is intended for turning cast iron, hard materials, and superalloys where high wear-resistance is the primary requirement. The BN7000 grade offers high wear-resistance to moderate wear-resistance and toughness against cast iron (ISO material group K) and high wear-resistance against special and super alloys (ISO material group S). Typical applications include finish turning of hardened ferrous components and nickel- or cobalt-based superalloy parts. The screw-holding method and CCGA toolholder interface make it compatible with standard negative-style tooling pockets adapted for positive-clearance PCBN inserts.

Key Features

• PCBN insert material delivers extreme hardness and thermal stability for hard-turning and superalloy applications
• BN7000 grade rated for high wear-resistance in cast iron (K) and high wear-resistance in superalloys (S)
• 80-degree diamond (rhombic) insert shape provides strong cutting edge geometry suitable for longitudinal and facing passes
• 1/64 inch corner radius minimizes cutting forces while maintaining edge strength on finish cuts
• Positive rake and positive side clearance reduce cutting pressure and heat generation at the workpiece interface
• 2 cutting edges per insert; screw-clamped mounting for repeatable indexing
• Compliant with ANSI and ISO 13399 insert standards; ANSI code CCGA32.51, ISO code CCGA09T304

Compatibility

Designed for use in CCGA-style toolholders with a screw-clamping insert holding method. Compatible with primary workpiece materials including cast iron, hard materials, and superalloys per ISO material groups K and S. Verify toolholder pocket geometry and clearance angle against the CCGA insert style before installation.

Installation Notes

This insert is installed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the correct torque driver for the clamping screw to ensure proper seating without damaging the PCBN blank. PCBN inserts are brittle and should never be used for interrupted heavy cuts beyond their rated application range without confirming grade suitability with the manufacturer.