TH100490A - Methods for machining of non-metallic inorganic parts. - Google Patents

Abstract

DC60 (24/01/51) The tooling method involves the use of a fluid between the abrasive component and the workpiece, followed by relative sliding of the abrasive component and the workpiece. This fluid contains an anti-clogging agent composed of phosphorus-containing organic chemicals.

Claims (27)

1. Machining Method: A fluid is used between the abrasive component and the workpiece, which is primarily composed of glass, glass-ceramic, or ceramic components. The fluid contains an anti-clogging agent, an organic chemical compound that prevents the abrasive from adhering to the workpiece and removes material. 2. The method of Claim 1, where organic chemicals containing phosphorus may have a functional group of a choice from a group consisting of phosphonates, phosphates, phosphoramides, phosphonamides, theophosphates, theophosphonates, and phosphites. 3. Method of claim 2, where the acting group will consist of phosphonates. 4. Method of Claim 3 where phosphonates shall be selected from a group comprising glycine-N,N-di (GDMP), aminotriamine (ATMP), N-2-hydroxyethyl-N,N-di (HEMPA), ethylenediaminetetra (EDTMPA), hexamethylenediaminetetra, diethylenetriaminepenta, phosphonoforate salts, hydroxyphosphonoacetic acid (HPA), 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), 1-hydroxyethylidine-1,1'-diphosphonic acid (HEDP) and salts of such compounds. 5. Method of Claim 4 where phosphonate is composed of 1-hydroxyethylenediene-1,1'-diphosphonic acid (HEDP) and its salts. 6. Method of claiming I where the use of machinery involves surface grinding. 7. The method of claim 6, whereby the abrasive compound shall consist of abrasive grains, these abrasive grains having an average particle size ranging from approximately 1.5 microns to 50 microns. 8. Method of Claim 1 where the use of machinery involves polishing. 9. The method of claim 8, whereby the abrasive compound shall consist of abrasive grains with an average particle size of approximately 0.01 to 1.5 microns. 10. Method of Claim 1 where the fluid shall consist of a lubricant component, chosen from a group of which 1) non-ionic chemicals including alcohols, thials, esters, amides, amines, amine oxides or amides and their derivatives; 2) anionic chemicals including phosphates, phosphonates, sulfates, sulfonates or carboxylates and their derivatives; 3) cationic chemicals such as quaternary amines or amine salts and their derivatives; and 4) amphoteric chemicals including propionates, betanes, glycinates or sulfates and their derivatives. 11. The method of Claim 10 whereby the lubricant components shall be selected from a group consisting of 1) non-ionic chemical agents and 2) anionic chemical agents as mentioned above. 12. The method of Claim 11, whereby the lubricant components shall consist of a nonionic chemical substance. Such nonionic chemical substance shall be selected from a group consisting of alcohol, thiol, ester, amide, amine, amine oxide, or imide, and its derivatives. 13. Method of Claim 1 where the abrasive component is firmly attached and consists of an abrasive coating or bonding agent. 14. The method of claim 13, whereby the abrasive bonding compound consists of an abrasive coating, an abrasive coating consisting of a backing substrate with abrasive grains bonded to it via a bonding system. 15. The method of claim 13 where the bonded abrasive consists of interconnected abrasive grains linked together through a bonding system. 16. The method of claim 13 where the abrasive is bonded with abrasive grains from a group of abrasives consisting of diamond, boron carbide, boron nitrile, silicon carbide, silicon nitride, silicon oxide, aluminum oxide, aluminum nitride, zirconium oxide, cerium oxide, chromium oxide, iron oxide and composite materials of such materials. 17. Method of Claim 1 where the work consists primarily of glass, ceramic, or glass-ceramic composite materials. 18. Method of claim 17 where the work consists of glass as its essential component. 19. Method of claim 18 where the work consists of glass containing silica as the main component. 20. Method of Claim 1 where the work consists primarily of ceramic components. 21. Method of Claim 1 where the sliding consists of keeping the workpiece in a fixed position and sliding the abrasive material along the workpiece. 22. Method of claim 21 where the abrasive is rotated along the workpiece. 23. Method of Claim 1 where the sliding action consists of keeping the abrasive firmly in a fixed position and sliding the workpiece. 24. Method of using glassworking tools: The application of a fluid between the abrasive component and the glass workpiece. The fluid contains an anti-clogging agent, which consists of organic chemicals with phosphorescent groups. The abrasive component and the glass piece are then moved in a relative motion to remove material from the workpiece. 25. Method of Claim 1 whereby this anti-clogging agent shall consist of 1-hydroxyethylidine-1,1'-diphosphonic acid (HEDP) and its salts. 26. Method of claim 24 where the glass work consists of glass containing silica as the main component. 27. Method of machining glass workpieces: The use of a non-abrasive abrasive fluid between the abrasive component and the glass workpiece. The abrasive fluid consists of an anti-clogging agent and a lubricant. The anti-clogging agent contains organic chemicals with phosphorescent groups, and the lubricant is selected from groups consisting of: 1) non-ionic chemicals, 2) anionic chemicals, 3) cationic chemicals, and 4) amphoteric chemicals. The abrasive component and the glass workpiece are moved in a coordinated manner to remove material from the workpiece.