Cornelius Johannes Pretorius
Cornelius Johannes Pretorius, Co. Clare IE
Patent application number | Description | Published |
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20090272041 | METHOD OF MAKING A CBN COMPACT - A layer of a refractory material produced and bonded in situ to a surface of a CBN compact during the high temperature/high pressure manufacture of the CBN compact. | 11-05-2009 |
20100018127 | cBN COMPOSITE MATERIAL AND TOOL - The invention provides a tool component comprising a first layer of polycrystalline cBN material which has a rake (working) surface and a flank surface and comprises less than 70 vol% cBN; and a secondary layer across the rake surface or at least partially across the rake surface and comprising a refractory material and optionally a binder phase and optionally cBN, wherein the secondary layer has a higher resistance to crater formation than the first layer of cBN material and has a lower affinity towards iron than cBN. | 01-28-2010 |
20100215448 | METHOD OF MACHINING A SUBSTRATE - The invention provides for a method of machining a substrate which includes the step of machining the substrate in an interrupted machining, impact machining or combination thereof operation using a tool which includes a tool component comprising a layer of polycrystalline diamond ( | 08-26-2010 |
Cornelius Johannes Pretorius, County Clare IL
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20100186304 | Fine Grained Polycrystalline Abrasive Material - Polycrystalline diamond abrasive elements having a fine grained microstructure are produced from fine grained diamond particles and a catalyst solvent material, at least a portion of which is in the form of nanosized particles. The abrasive elements exhibit high homogeneity and exhibit significant increases in toughness and improved wear resistance. | 07-29-2010 |
Cornelius Johannes Pretorius, Clare IE
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20100143054 | METHOD OF MACHINING A WORKPIECE - The invention provides for a method of machining a workpiece made of a material selected from a metal, metal matrix composite, wood, synthetic, ceramic and stone and synthetic construction materials which includes the step of machining the workpiece using a tool which includes a tool component comprising a layer of polycrystalline diamond ( | 06-10-2010 |
20100167044 | TOOL COMPONENT - The invention provides for a tool component comprising a layer of polycrystalline diamond ( | 07-01-2010 |
Cornelius Johannes Pretorius, County Clare IE
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20090126541 | Cutting Method - A cutting tool component which has an ultra-thin layer of ultra-hard material bonded to a cemented carbide substrate. The ultra-thin layer of ultra-hard material has a thickness of no greater than 0.2 mm. This cutting tool is used to cut workpieces under roughing and/or interrupted cut conditions. Where the workpiece is a wood product or wood composite the invention extends to cutting such workpieces in general. The ultra-hard material is preferably PCD or PCBN. | 05-21-2009 |
20090148249 | PCBN Cutting Tool Components - A cutting tool component ( | 06-11-2009 |
Cornelius Johannes Pretorius, Sixmilebridge IE
Patent application number | Description | Published |
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20140251100 | Cutting Method - A cutting tool component which has an ultra-thin layer of ultra-hard material bonded to a cemented carbide substrate. The ultra-thin layer of ultra-hard material has a thickness of no greater than 0.2 mm. This cutting tool is used to cut workpieces under roughing and/or interrupted cut conditions. Where the workplace is a wood product or wood composite the invention extends to cutting such workpieces in general. The ultra-hard material is preferably PCD or PCBN. | 09-11-2014 |