Solid-corner Polycrystalline CBN Inserts with Pin-lock Holes

Problems in Machining Technology. Until the middle of the Twentieth Century, the old standby method for creating machined parts was dependent on grinding or etching away small bits of metal from a blank and required metal on metal or diamond material as an abrasive. The process generated considerable heat and potentially affected the chemical composition of the material being machined and the actual grinding tool.

Polycrystalline Cubic Boron Nitride (aka PCBN). With the development of PCBN, this super-hard material suitable for use in precision cutting tools became a new choice for metal part fabrication. Swift Manufacturing Ltd (China) has developed a polycrystalline CBN product suitable for use by industries using turning, milling techniques to fabricate parts requiring special shapes, holes, unique turnings, etc. from a variety of materials ranging from soft metals to cast iron and even hardened steel. Fabrication with its PCBN product, one item at a time or in multiples, meets or exceeds national and international specification standards. The stability of PCBN across a broad range of temperatures up to 1200 degrees Celsius makes it a choice answer to needs requiring ferrous metal machining. Moreover, manufacturing costs for PCBN are less than 6% of total milling costs.

Preferred Alternatives to Conventional Machining - the PCBN inserts. Swift Manufacturing ltd has developed the concept of polycrystalline CBN inserts. There is no need to build a machine totally of pCBN, although Swift can fabricate whole parts of PCBN for proprietary machinery. Instead, inserts with strategically-placed abrasive surfaces covered with the PCBN material can be integrated into milling machinery, e.g., existing cutting tools, turning apparatus, cutting tools, machining surfaces, or tooling. Solid-corner CBN inserts or blanks with strategically placed pin-lock holes to permit locking in of specialized PCBN inserts have been developed by this company.

Special Applications for Solid CBN Inserts. Where heat dissipation is crucial to the manufacturing process, solid CBN inserts may be a preferred option to control temperature issues. Solid CBN inserts excel in applications requiring fabrication of ferrous metals (including hardened steel), e.g., hard turning of rollers, bearings, gearings, pumps, etc.

A PCBN Shape for Every Fabrication Need. Inserts are available in a variety of shapes, depending on fabrication machinery purpose and specific application. Different shapes may be used on the same piece of production equipment, as appropriate for multiple applications. Six basic shapes are available, i.e., the Diamond (angles with 80, 55, and 35 degree patterns), the Parallelogram (angle of 55 degree), the Circle, the Square, the Triangle, and the Hexagon. Shapes are customized for size. Sets of inserts for trial purposes are available through swift manufacturing ltd.