Artificial tooth root machines titanium alloy figuration technology

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Because form is complex,be the artificial tooth root of material with titanium alloy and the measure that has diversity to differ, reason makes the treatment move such as the turning that much line includes on Cheng, milling, punching and car tooth. We are aimed at mill of heart type car this compound machine (abbreviation car mill is compound under Swiss-type Lathe) (machine) apply at titanium alloy the relevant processing technique of artificial tooth root has research and development. Main executive item is (one) Che Xi is compound the operation technology of machine, (2) the design of cutting tool and development, especially the cutting tool of tornado cutting, (3) of CAD/CAM technology guide. The design that considers to finish cutting tool of two tornado turning originally and make, use CAD/CAM software to finish titanium alloy the arrangement of method of cutting tool of artificial tooth root generates NC code successfully, compound machine undertakes Che Xi of tie-in finally Star SR-20R the effective treatment of artificial tooth root. One, because introductive titanium or titanium alloy have biology compatibility, because this is reached in dentistry, orthopaedics,rectify model of surgical and embedded material choose on have its advantage. But titanium or titanium alloy also have the high strength below tall chemical reactivity, low hot conductibility, high temperature, reach the character such as low modulus of elasticity, processability is very accordingly poor. How choosing the most effective titanium alloy processing technique is a challenge that medical treatment component creates. Because form is complex,be the artificial tooth root of material with titanium alloy and the measure that has diversity to differ, reason makes the treatment move such as the turning that much line includes on Cheng, milling, punching and car tooth, what locate for treatment is accurate and convenient those who reach the man-hour that make Cheng is economic, treatment facilities with Che Xi compound machine suits most. The technology of tornado turning all did not involve detail in relevant paper. At present home seldom counts manufacturer to use tornado cutting only, yi Youou beauty imports its cutting tool, order 3 weeks of above when delivery often needs by cutting tool, go up in cost and effectiveness for a given period of time all extremely adverse, reason is necessary to develop cutting tool to design production own capacity. CAM is used at 3D milling to machine already very mature. But in turning domain, because cutting tool method is not complex, industrial group still stays at editing the phase of program of cutting tool method by hand, to CAM introduce not active, the talent that is familiar with CAM consequently is not much. Should enter Che Xi compound treatment phase, the talent of domestic CAM is almost peerless more. And intricate work (gnathic tine is artificial before be like tooth root) treatment often needs handiwork of a lot of time to edit program of cutting tool method. Can guide CAM Che Xi is compound treatment, great to industry play help. 2, when tooth of tornado cutting snail is being elaborated first under research technique, on cutting tool design, the analysis that does on edge dimension design especially, devise edge measure. Of the flow that explains with Che Xi compound machine undertakes artificial tooth root is machined later and CAD/CAM technology guide. 2.

It is OK that analysis of geometry of 1 tornado turning and edge devise the way with tooth of snail of cutting of tornado cutting tool by the graph 1 do a specification. Workpiece with slow fast rotate (tens of RPM) , cooperate every to turn the feed rate that tooth of a snail is apart from. The undertakes high speed rotates you relying on installing is in tornado lathe tool of cutting first (the edge on Whirling Ring) . Because walk along a knife to be able to finish the cutting of snail tooth, productivity can compare common turning or tooth of traditional turning snail rises multiple. And the relative position of guide-post bushing and head of tornado lathe tool is fixed, so cutting is nodded with workpiece by strong point (workpiece is propped up by guide-post bushing) the distance constant between is one relatively little calm value, make workpiece rigid beautiful, treatment dimension and quality are maintained easily and do not suffer snail tooth to grow or affect shortly, suit cutting to grow snail tooth more. Pursue 1 with Che Xi compound machine undertakes tooth of tornado cutting snail pursues the sketch map that place of the each cutting blade when tooth of snail of 2 tornado cutting is in charge of cutting ream work area pursues when 2 medium brunet areas are cutting of tornado lathe tool, the place in the graph is shown for workpiece every turn the state that circuit is crossed by 14 blade cutting. Workpiece every turn actual cutting frequency, can be informed by next exemples. The cutting speed of titanium alloy is in about 30-60m/min, take 45m/min, do of external diameter of tooth of snail of the root that be like a tooth is 3.

5mm, criterion the rotate speed T of head of tornado lathe tool should be: ω =45*1, 000/(π Do)=4, 092rpm Nextpage but because check machine stage Star SR-20R,top rotate speed is restricted, take rotate speed of head of tornado lathe tool 3, 000rpm. There are 6 blades on knife head, 50 Rpm of use workpiece rotate speed, real go to work each rotate will by N second edge course: N=3, 000*6/50=360(tooth/rev) because N value is quite great, make the cutting strength that each edge place suffers relative decrescent, reason can prolong the life of cutting tool. Head of tornado cutting knife and workpiece are not coaxial, provide one banking angle to spend however (of snail tooth guide horn, be like graph 1) , n=3, 000*6/50=360(tooth/rev) graph 3 IM07 is artificial the root of number IM07 artificial tooth that tooth root uses with this research (graph 3) is exemple, the lead P = 0 of its snail tooth.

8mm. Be like D the external diameter Do= 3 with snail tooth.

3 Mm takes the place of, criterion: N=3, 000*6/50=360(tooth/rev) is like D the root diameter Dr=2 with snail tooth.

5mm takes the place of, criterion N=3, 000*6/50=360(tooth/rev) is like D the mean path Davg=2 with snail tooth.

9mm takes the place of, criterion A=tan-1(0.

8/(π * 2.

9))=5.

0 ° pursue the relation of appearance of the edge when tooth of snail of cutting of 4 specifications tornado and snail tooth section, the A in the graph is the width =0 of edge.

The cutting with root of IM07 artificial tooth is 65mm(exemple) , b is the deepness =0 of edge.

4mm, d is the width of snail tooth section, e is the deepness of snail tooth section, a is snail tooth guide horn, the banking angle of head of i.e. tornado lathe tool, do is the external diameter of snail tooth, c is the distance of the predestined relationship outside workpiece to snail tooth coping. Graph the relation chart of outline of the edge when tooth of snail of 4 tornado cutting and snail tooth section 1 specification explains diameter of snail tooth ministry to be able to get respectively with different kind 4.

4 ° , 5.

0 ° , 5.

The banking angle of head of tornado lathe tool of 8 ° . The 3rd column is the width of section of tooth of the snail after cutting: D. The 4th column is the deepness of section of tooth of the snail after cutting: E. The width A cost that compares D value and where a thing can be put to best use is knowable its difference all is less than 1% or 0.

004mm, the difference that at the same time the deepness B of E value and edge is worth also is less than 1% . This difference is negligible on the project. Can get the following verdict by afore-mentioned analysises: 1.

When tornado cutting, diameter of snail tooth ministry takes snail tooth external diameter or take a way its influence all is in 1% in, but the average that takes external diameter and root way commonly. 2.

When adjusting banking angle of head of tornado lathe tool, if produce ± 0.

The error of 5 ° , still won't affect treatment precision. 3.

Because edge outline and difference of snail tooth section are dinky, tooth section will use the snail when designing where a thing can be put to best use to regard edge as outline directly, and do not need to pass corrective. Of course when this state applies to low banking angle only, become when banking angle is bigger, the outline of edge is not the snail tooth section of tooth root blueprint, both between need to change move via turning, square can cutting gives correct whorl appearance. CNC Milling CNC Machining