The Case of BN-K1 CBN Insert machining high chromium cast ir
High chromium cast iron as one of the main wear-resistant materials, were widely used in various fields, the typical parts of the rolls, pumps and other parts.
High Chromium cast iron, as a wear-resistant material, also belongs to high hardness difficult to process materials, in the process, we often meet the following processing problems:
(1) Because the hardness of the material is generally above HRC45, the traditional cutting tools will be easily wear, especially for large scale work piece, a work piece can’t finish grinding or replace the insert, which will affect the surface quality of the work piece;
(2) Castings, especially the large scale high-chromium cast iron parts, the greater the margin, and the surface will generally have casting defects (sand, porosity, hard points, etc.), the traditional cutting tool will be easily collapse when encountered casting defects which will lead to the costs very high.
Halnn, as a professional production cbn inserts manufacturers, has specific cbn inserts BN-K1 for high-chromium cast iron, especially the processing of casting defects exist high chromium cast iron The advantages of more prominent. Halnn CBN Inserts BN-K1 belongs to solid cbn inserts, the content of cubic boron nitride include 90%, will not chipping when meet sand, porosity and other casting defects.
Application Case: BN-K1 Solid cbn inserts rough machining high chromium cast iron rolls
Work piece material: high chromium cast iron
Work piece name: Mill Rolls
Work piece hardness: HRC50 or Above
CBN Inserts Grade: BN-K1 CNMN120712
Cutting parameters: Vc= 50m/min, Fr=0.35mm/r, ap=4mm
Machining effect: It will not be chipping phenomenon when meet large cutting depth, and has better impact resistance and roughness, which receive the recognization of the manufacturers.
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