The form of tall follow the lead of of the groove on gas turbine spare parts is machined
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05 (corresponding at 26 degrees of tool cutting edge angle) to 0.
15 (corresponding at 45 degrees of tool cutting edge angle) between the feed when amends coefficient for 2.
3 to 1.
4. This shows, when using round bit, the quite bigger than be being had to a lot of respects impact of cutting deepness and bit diameter, the security that this includes process of quality of possibility of time of metallic purify rate, cutting, process designing, surface and grooving and copying. Nextpage is one of successful crucial factors to the turning platoon bits of groove. Right at titanium alloy, normally the hope gets cutting bits width small Wu Dao piece (groove) the longer helix of width or snail coil bits. Titanium alloy is formed wind shear contrast is cut when cutting bits extremely tall, form harder consequently narrower cut bits, this need chooses the properest bit chamfer form and feed. Inside the working limits that chooses groovy form, cutting tool life also is one of influencing factor that decide optimal feed. The spare parts needs to undertake a lot of wide chamfer are machined, this means organic meeting to pass what cutting tool realizes pair of cutting processes with method taking a knife to optimize. Without doubt, all groove have sidewall. If do not take corresponding step, can bring about cutting tool to produce the adverse situation with cutting blade abrupt and overmuch penetration of a cutting tool when cutting sidewall. Transfer to bottom and sidewall when cutting when round horn, cutting blade can experience the impact that cutting deepness increases suddenly: Its tool cutting edge angle from low add quickly at 45 degrees reach 100 degrees, corresponding cutting deepness is OK from diameter of round razor blade 15% increase 60% . This kind of concussion and additional laden effect are met aggravate cutting tool is excessive tatty risk, can cause bit rupture even and reduce the dislocation number of round razor blade. "Boil " / " boil " type is cut cut pair of turning at use circle razor blade, can adopt all sorts of methods to transfer to cutting workpiece and bottom and sidewall the treatment of round part part undertakes optimizing. Its are main the method is feed is reduced when approaching round part, this action can reduce the pressure on cutting blade; Another kind of method is union uses the bit diameter that suits Wu Guo to cross round horn radius, sidewall of the treatment when making bit different and transfer round part part, reduce the osculatory length of cutting blade and workpiece substantially thereby. Cycloidal turning / to turning also namely, our purpose is to use dimension and sidewall to transfer the round razor blade that round horn photograph gets used to, walk along cutter track diameter and feed with first-rate, with " boil " and " boil " the means treatment of feed transfers round horn. Transfer the difference between round horn radius and bit diameter is bigger, of feed reduce less, manufacturing efficiency also can be jumped over tall. To the cutting way that Wu Dao has, radius of its process designing should be not big at bit diameter (be decided by the property at this working procedure) . Generally speaking, should differentiate wide chamfer treatment the gather that is a certain number of profiling. This action aims to maintain appropriate cutting blade to contact arc length below optimal feed, in order to obtain bigger cutting deepness. Cycloidal turning is had decide walk along a knife to answer a circle, blade of cutting tool cutting and workpiece contact arc length are relatively lesser, method of this kind of treatment can improve cutting result, the advantage is clear, can replace well inclined to turning, cut type turning and multiform grooving circulation. If the progress of domain of treatment of round razor blade wants Baconian round razor blade to machine the progress of the domain, particular system pledges in bit chamfer form, material now and on process designing method. Material of appropriative razor blade pledges and groovy form cuts heat-resisting to Wu Che for super alloy crucial. Regard pottery and porcelain as the complement of bit, newest the hard alloy razor blade that roll out develops in recent years swift and violent. SO5F is a kind of very advanced hard alloy material pledges. Its are tall the fine grain matrix of hardness adds CVD scumble layer, make its can bear higher cutting temperature, wearability is very good. This is meant, this material can be character in rough machining and finish machining working procedure undertake turning with taller cutting parameter. The hard alloy material of PVD coating pledges GC1105 has very tall red rigid, can avoid effectively to appear on sharp cutting blade inside very wide cutting parameter range plasticity is out of shape. In qualitative respect of material of pottery and porcelain, mount surpasses A Long (Sialon) the lathe tool of CC6060 of pottery and porcelain makes copying and sunken antrum treatment are perfected further. In more stable treatment circumstance, or workpiece surface already below the condition of prior operation, this material is had character very strong fight groove to wear away ability. Will see groovy body again, round razor blade and razor blade of grooving of circular arc point (like SM and RO) already was come out by development, with optimizing heat-resisting the turning of super alloy, copying and sunken antrum machine working procedure. SM is look of a kind of chamfer of round razor blade that has bigger scope of application, its light groove body and S05F material are united in wedlock character, can use very tall cutting parameter. Groovy form RO is used on grooving of blade of circular arc of CoroCut double head and profile modeling razor blade, this chamfer form has sharp cutting blade, when treatment heat-resisting super alloy is mixed when other and agglutinant material, the good control that cut bits can be offerred below inferior cutting deepness and feed. CNC Milling CNC Machining