02:05
{A number of|Many|A lot of} honing equipment suppliers said the trend today is towards {diamonds|precious stone} honing. Andy Rottler of Rottler {Production|Developing|Making}, Kent, WA, estimates that about eighty percent of the new honing machines he sells have {diamonds|precious stone} stones to {commence|get started} with and/or soon converted from vitrified stones to {diamonds|precious stone} during a call. "It used to be {Verdatre were|Olivatre were} the only ones who would buy {diamonds|precious stone} honing equipment. But {recently|these days} small shops are buying it too.
More and more people are {transitioning|moving over|turning} to {diamonds|precious stone} because it is {more affordable|less costly|cheaper} over the long term, costing about one fifth as much as vitrified abrasives, as long as you do not break {a rock|a natural stone}. Diamond also gives a more {steady|regular} bore {end|surface finish|finish off} and better bore angles. But to maximize the {great things about|benefits associated with} diamond, you {desire a} rigid hone head.
"Vitrified stones never put wear and tear on {a steady|a regular} rate. Wear {can differ|may differ|may vary} with the grade of {rocks|pebbles|gallstones} and the hardness of the block. It is hard to predict how much metal the {rocks are|pebbles are|gallstones are} actually removing, so you have to stop your equipment, measure the bore size, then reboot the machine {to complete|in order to complete|to end} the cylinder. With diamond, you can set up your equipment, turn it on and {leave|disappear}. It will hone it to the right size. {inch|inches}
Rottler said there is no set procedure for {focusing|sharpening} with diamond. Procedures {differ|fluctuate|change} from one application to another, and from one rebuilder to another. {A large number of|Various} use a three-step {process|treatment|method} that starts with {tough|difficult|hard} honing with an {intense|extreme|hostile} grit to in a few thousandths of last size, finish honing with an excellent grit (#325 to 550), then {cleaning|scrubbing|combing} to clean and {clean|simple|even} the bores.
"If you do not use {a diamonds|a precious stone} properly, you can {conclude|wrap up} with a lot of smeared and folded {metallic|steel|material}. Of course, if you do not {care for|manage} the stones, they can leave a lot of {ripped|split} metal on the surface. "
Rottler said {cleaning is|scrubbing is|combing is} not absolutely necessary when honing with {diamonds|precious stone} provided you use the correct load on the stones. The load factor will vary {in one|from|from a single} manufacturers equipment to another, {typically|normally} the finish load should {maintain|take|have} the 30 to 35% range. For roughing, use maximum load for rapid metal removal.
{An additional|One more|One other} plus with {diamonds|precious stone} {in accordance|relating|in respect} to Rottler is that a water-based synthetic {lubrication|lube|grease} eliminates heat as a factory, which reduces {weary|lose interest|pipe} distortion. "It also {will|does indeed} not stink like mineral-based honing oils. {inch|inches}
Lyle Haley of Peterson Equipment Tool Inc., Shawnee {Objective|Quest} KS, says the coolant is a critical factor in using diamonds. "If the coolant mixture is off, it {can impact|could affect|may affect} the finish of the bores. As a rule, the concentration {of the|of any|of your} water-based {artificial|man made|man-made} should be 1-1/2 to 2%. A refractometer should be used to {keep an eye on|screen} the concentration. {inch|inches}
{Get rid of|Throw|Toss} Downs of Kwik-Way {Items|Goods}, Marion, IA, said a lot {of men and women are|of folks are} taking a look at {diamonds|precious stone} to save money {also to|and} {improve|progress} results, not necessary to reduce honing time.
"Diamond requires a lot of pressure to break down and cut properly, {to|in like manner} get the most from it you need equipment that is {made for|suitable for} {gemstone|diamonds|precious stone}. Some older honing machines {may well not|might not exactly} work well with diamond. Newer honing equipment typically has higher {hp|horse power} ratings and more {strict|stiff|tight} designs to hone with diamond.
"With {a great deal|a whole lot} of pressure and a multi-stone hone head, you can remove. 008 to. 010 inch of stock per minute with {gemstone|diamonds|precious stone}. The greater the {quantity|amount} of stones in the head, the less the pressure required to acquire a specific rate of stock removal. "
Lows said comparing grit sizes between {diamonds|precious stone} and vitrified abrasives can be {deceptive|deceiving|inaccurate}. With diamond, the {resolution|determination} rating is actually a concentration of {diamonds|precious stone} in the stone. {The larger|The greater|The bigger} the concentration, the finer the rating. A {diamonds|precious stone} {rock|jewel} with a 35% {focus|attention|attentiveness} would be {a tough|a difficult|a hard} honing stone and would cut similar to an #80 grit vitrified {harsh|rough|coarse}. A stone with a 65 to 70% {diamonds|precious stone} would cut similar to a #325 grit vitrified abrasive.
Mark Henson of LDX Genesis, Cedar Rapids, IA, said their new honing machine was designed from the beginning up to work with {gemstone|diamonds|precious stone}. {The equipment|The device|The appliance} uses {regular|frequent} {mind|brain} pressure (accomplished electronically with control software) to {enhance|improve|boost} the cutting action of {diamonds|precious stone} stones in various engine applications.
"We recommend rough {diamonds|precious stone} honing with #70 to #90 {resolution|determination} stones to within. 002 inch of ultimate {pipe|tube} size, then finishing to size with #500 to #550 grit {diamonds|precious stone} {rocks|pebbles|gallstones}, followed by 10 {mere seconds|secs|moments} of brushing to clean {the top|the area|the}. With this {process|treatment|method}, you {can perform|is capable of} surface {completed|done} in the 13 to 15 RA range without brushing, or {six to eight|5 to 8} RA with brushing, " said Henson.
Skip Green at Winona Van Norman, Winona MN, says that although they have received a lot of inquiries about {diamonds|precious stone} honing, except for PERS {almost all of} the {automotive aftermarket is|aftermarket replacement is|auto aftermarket is} still using vitrified abrasives. "It {requires a focusing|requires a sharpening|needs a focusing|needs a sharpening|uses a focusing|uses a sharpening} machine built for {heavy duty|strong} use to handle {gemstones|diamond jewelry|expensive diamonds}.
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