Light makes grinding treatment

Light rectifies grinding Normal Align=left> makes workpiece obtains surface roughness Ra to be worth 0.

1 the following grinding calls smooth whole grinding, be worth Ra to be in among them 0.

16-0.

Of 08um call accurate grinding; Obtain Ra, value 0.

02.

- - 0.

Of 044um make exceed accurate grinding; Obtain R, value 0.

01um calls mirror grinding below.

Smooth whole grinding basically relies on the careful nap of emery wheel, make emery wheel grinds a small cutting tool to have wait for tall sex very well, because this can make,be left by treatment surface a large number of extremely imperceptible grinding traces. Rudimental height is very small, add when having scintilla grinding phase, in small blade cutting, slippery below the integrated action such as crowded, polish, attrition, those who make the surface inferior is numeric.

When smooth whole grinding, emery wheel nap is crucial, but the option of emery wheel is very important also.

If be mixed to steel cast-iron when undertaking accurate grinding, choose Bai Gangyu (WA) , granuality is 60# , 80# , divide the effect of small blade cutting that produces thick granuality abrasive to fill usually, emery wheel of bond of commonly used pottery and porcelain.

But to do not appear burn, make machine exterior quality stability, also can choose the colophony bond emery wheel that decides flexibility.

To obtain tall treatment precision, the machine tool that executes smooth whole grinding is due tall geometrical essence a tall building, the transverse feed orgnaization of high accuracy, in order to assure the tall sex such as the small blade sex when emery wheel nap and small blade, and return due the workbench with low speed good stability moves to machine quality in order to make sure quality of emery wheel nap is mixed.

Normal Align=left> light rectifies the main distinction of grinding and general grinding to be as follows: Normal Align=left> (1) emery wheel granuality is finer, 46# is when general grinding, 60# , for 60# above reachs W10 Normal Align=left> (2) emery wheel linear velocity is inferior.

Amount to 12, 20m/s. Normal Align=left> (3) rate of the workbench when emery wheel nap is slow.

Amount to 10-25mm/min Normal Align=left>(4) transverse feed is smaller, it is commonly 0.

02-O.

0Smm.

It is when smooth full treatment 0.

0025-O.

00Smm.

Normal Align=left> (5) workpiece linear velocity is low, 20-30m/min is when general grinding, 4-10mrn/min is when smooth full treatment. Normal Align=left> (6) without scintilla grinding frequency much, it is commonly 1, 2, 10-20 is when smooth full treatment second.

Smooth whole grinding applies to main shaft of of all kinds and accurate machine tool.

Crucial axle sleeve.

Roller.

Plug guage.

Bearing ferrule the treatment that wait. Normal Align=left>2.

Abrade Normal Align=left> is abrade it is to use free to grind bead and grind a technique that has minim purify to workpiece surface, it can win high accuracy and the work that low surface roughness is worth.

Dimension precision can be amounted to inferior micron class, exterior surface roughness is worth amount to Ra0.

01um, the light that is a tradition is whole.

Nicety machines one of methods. Normal Align=left>3.

Develop grinds Normal Align=center> pursues Normal Align=left> develop is ground is to use fine the develop wheelhead that grinds bead to grind a composition, cooperate to rise with move back and forth and whirligig the craft of a kind of smooth full treatment that machines the aperture inside the spare parts, if pursue,1 is shown.

Grind through develop commonly can raise appearance and dimension precision one class, exterior surface roughness can amount to Ra O.

2 -O.

025;tm.

When government office grinds treatment, ya grinds machine main shaft to drive develop wheelhead to make rotate and reciprocate, shrink through correct wheelhead bilges mediumly the orgnaization makes extend, xiang Kongbi applies force to move in order to make feed, implementation correct grinds treatment. Develop grinds the geometrical appearance precision of treatment and cutting efficiency, depend on greatly the configuration of litter wheelhead and its rationality.

Correct when the rotate speed coming back of government office wheelhead spends V and resultant velocity V of Vf of speed of move back and forth, it is its cutting speed namely, the contrail that its move is the corkscrewed yarn of edge aperture surface.

If graph 1(a) place is shown, do not repeat to make every mushroom bead is machining apparently cutting contrail, correct wheelhead the position of rest of journey of each move back and forth with go up stagger an angle, the seat of government that forms even across thereby grinds reticulation, if pursue,1(b) place is shown.

Normal Align=left> develop grinds treatment to basically have following characteristic: Normal Align=left> (1) exterior quality character is good.

Develop grinds exterior surface roughness to be worth Ra O.

025um, because contrail of exterior small blade is alternate reticulation, reason is helpful for storing lube, it is a crock brief.

The main treatment method such as aperture of a powerful person. Normal Align=left> (2) treatment precision is tall.

Contemporary your home not only can obtain taller dimension precision, and the light figure error that still can correct aperture to appear before the bridge is ground.

Rare He Guozhu of the circularity when grinding alveolus is spent can amount to 0.

5um, linearity can be less than 1um. Normal Align=left> (3) efficiency is tall.

Because develop wheelhead has many arenaceous (oilstone) , or use the rate of move back and forth that raises wheelhead in order to increase reticulation across role, reason can be faster surplus of mushroom of ground purify develop.

Ya grinds mental allowance and primitive surface surface roughness to concern, it is commonly inside 5-40/ limits.

Round economy is good, applied range is wide. Because develop is ground,ask equipment is simpler, and the operation is convenient. Normal Align=left> (4) economy is good.

It can machine the aperture of diametical 1~120mm, aperture length can amount to 1200mm.

Outside dividing Kong Zhi the circle outside passable treatment.

Spherical reach annular curved surface.

Graph the cutting contrail Normal Align=center>normal Align=left>4.

Superfinishing Normal Align=left> superfinishing is to use fine the oilstone that wears bead, make reciprocate of tall frequency short distance, the workpiece surface that moves to making turn with very little pressure undertakes machining. Its mental allowance is 3, 20um.

Superfinishing can obtain very low surface surface roughness to be worth Ra for 0.

16-O.

01um, but the smooth rate that can change the face only, appearance of unalterable macroscopical geometry.

For superfinishing sketch map.

Superfinishing basically is used at machining the crankshaft of internal-combustion engine.

Camshaft.

Piston.

Piston pin.

Superfinishing can be right all sorts of material Normal Align=center> pursues 3 exceed essence of life to grind Normal Align=center>1- oilstone shakes head 3- workpiece CNC Milling