HUE035781T2 - Hónolási eljárás és hónoló szerszám - Google Patents

Description

?» \C K Cbskft.fbiD |Hkit I ; he ον.cmruí >oHtes îtt ,i \-tuna sns'itexi t,u n* v. hianig tl« irhánál sni i uo ' ·.'· a bore u> a vnthpit »v wsth tk aid of at least orte hotting operation according to the preamble nf claim 1, and to a honing toot, which is usable for '»toone on- the » ;uor suenot, according to the rwamb'e ο* ''\on» d Xpre’coed neki ofuo w the homng w os sneer lltees doting the production of cylinder blocks or cyiittder Íiners lor reciprocating piston engines. |tMH>21 fits cylinder faces itt cylinder blocks (cyhader crank cases) or cylinder liners of Internal combustion engines ·, ,stint Ο”·χΐιΐη pstsu own kO'o »' \> , w ,, , ,ιΜ<\»<ι "" 'tnnn >ρ utu ' l\ t ·. . e production of cylinder blocks or cylinder lincts, tend cylinder faces therefore have to be machined in such a manner tbts; sufficient lubrication by tnenna of a lubricant bint is subsequently ensured under all operating conditions and the foetionai resistance between parts moving relative to one another is kept as low as possible, 100051 Tint quality -determining tinish-machioing of such tribologically stressablc internal surfaces generally takes place with suitable honing methods which typically comprise a phttalily of successive honing operations. Bonatg is a rutting process using geutuetricaliy undefined cttrdttg edges During a honing operation, an expandable honing tool is uiMS-'d and d«''Vt ot tv' ,-.nd ttv wtdtm dtr core p tv rn.vhned <n otdat to ptvftacc ;t „xtptosuting tnosc-ucut i s the tonal direction of the bore at a teciprocat'lns·. fteunency anti ai the satne iinse is rotated in order to produce e oi u <"ti n <'st?i'u it obil isv'i'bte, w t\ tuw ttt now tun o ti í o'.ltonn h<.quvi«s He cutting material bodies atiachcdto the honing tool are pressed against the internal surface io he machined by an infeed system having an infeed force acting radially wtth respect to the tool axis. During the honing, a cross-grinding pattern which Is typical of Site honing machin Ing and has tnfersccttng finishing nuuTs, which ate also referred to as “hotting grooves", is produced on Ute internal surface. I0Ö041 With increasing reouttemenis for economy and environmental friendliness of engines, ike <<p'$nu at or <4 , <'< bo Ora wvoti o* nt- or mo»' tgs »' dm lue» " pmhr, im,>>‘t t n c ttt order io achieve a low level of friction, low level of wear and low oil eonsumpnoo. The friction οι ' η n oi t' e pw or g »up ,<ut ,>< tp t<> J'·”, ark cioi, lodovttvu Ή fv.oeo r t' s reg »n w dcsouhle ;itpo$l Httteuni .«»ivst» ό lednvn'g t s' sncxbunjca! uwu.~ o >» cigte ,ur pit-it-m ihcw ,""l«d? .-vet aba, ’Sts' 'we 'tn-ima is \prw,d ,vhnder utvcs, '.he use of ccnftrt pss'oo > i so f'.c drveiopmem of pmucularh optimized hosting surfaces, etc, l(Hlhn| \t\'n>log' w nob ts „a.iíutg * s,ow 'g u -, sott.» ,s\ -»t t ?du, tty, Ute'net or η n?'he wo .· -the ovosdaoce or reduction of cylinder distortions or deformations of the engine block (cylinder crank vtwet dining Assembly and or during operation. After conventional honing machining, « cylinder bore is intended typically to have a hors shape which deviates as little as possible, lor example at. maximum a tev mictomct.'tx, brnn an ideái tu'cu'nr-cslinde: shape. However dosing the u>svmbh or the operádon of the engine, it is possible for significant snaps' errors to occur which amount to np to several hmuttcdih of λ imihmeter and ma\ wduco the petfotmotnv of the engine. flic causes of dwtoiiioos or rfcfoimutions dtftct t'hev ano ovolw stiftk ot v-rtuutly static 'henna! and 't su\ 1 tittk< o f' V at \c 'te Ionos 1 ' e , mst , <. tuo <. t'v Peon ! i < s ns dst > osss at ><i 'as ' a ' effect-on die-deformation tendency; The sealing fection of the piston ring package is lypioaHÿ made worse by such deformations which can be dilficolt· to coatrol, .as a resuit of which the hiow»hy> kb« oil consumption and also the friction may Increase. ÍO8b7| in order to reduce problems due to distortions during assembly or in certain operating states, it bas been proposed, for example, in DE 28 10 322 C2 to use a tensioning device to deform the· engine block tor the boning machining in such a manner that the subsequent deformation is simulated by the cylindet head, so the braced stale which corresponds to the state subsequently present after ossernbh'. vnm ' xuh.n w , ket > i , '< ί<'< n ot xhn ' a , >t , la, v no ul vu . nt , \ «'''s' főrended to be set again stier the- assembly, |0utlb| Amdhu ,cehíOÍeg\ winch, In nnuunu be blinder dsOertun; tpu'datV'> of a neg,a \e shape of the error) during the machining, is sntcrsded to ensure or approximate the production of an ideal shape after the assembly or in the operating stale of the engine is what Is referred to as shape honing, A bore shape deviating In a de-fined manner ftom the c.irctiiaocyhnder shape, tör example s dose lx I tóp, n >txinec <en o n,unbr<kJ w »m xn\ , t h > ; m \m i>'x'x sh qx > are generally asymmetrical because the ddfohhaticns of the cylinder block are generally also not V mmmricel In bn. operating state, an ideal a cnvnl:n-<\ lit trier shape as possible is intended to he produced such that the piston ring package can provide a good sett) over the entire circumference of the bore. Various varianfs of shape booing sire described, rot example, Io EP } 790 43.5 BI and In the prior art mentioned therein.

[Ä)9| BP 1 321 229 A I, which ts the basis for the preambles of claims I and· d, describes a. method': for the production of a bote winch has an Initiai shape in the unloaded condition and has a required shape, differing from the initial shape, m the operating condition. During the procedure, deformation of a bore towards the required shape in the operatic,§ conduira; is etalom.ed, the Initial shape is evaluated using the required shape and the deformation, and the bote is transferred to the initial shape using a .machining method, ín the exemplary embodiment, the suiful shape of the bore .is largely cylindrical in an upper region, and elliptic In a lower region. The two regions merge in a central transitional region, A honing machine having one to four honing stones is used lor machining. Since the bote geometry in the centrai region continuously varies between the cylindrical region and the el if pile region, booing stones havinga very short axial extension are employed, plOKfl The international patent application published with serial number WO 01/7681? AI discloses a hydraulically expandable honing tool having an annular cutting group on the boning tool end remote b U -, i V s t < tt mt i !·, u< ppl id so d; ds ·, ot tw Sj <p < ι IP ! ο '•ικ v < o formed integrally on ibo tool body.The tongues are spread outwards during the Infeed procedure to increase the effective outer -diameter. idd! f I The first. publication of the t3etman patent aopbeonon DV. Id 52 (174 At discloses a honing too' hwu'o, u ., rung group s^mpovd m iw<. munch icnlis <<pp\>ed boiunp «egmens u ds e^te.sx.' fibs, with tbc cutting layer ;q>pbed on the ribs,

PROBLEM AND SOLUTION itkl.l2' ! > ' s 'bi' 'ti 1 »' 'ík ' 1 Wik g ' ·. \\ι »Wh' \«.χ ' awe,on ano a honing tool usable for carrying out said hotting method, said honing method and honing inch making it possible w produce reelprochtitig piston engines which have Improved pr«p®tiles in respect of hantion losses, oil consumption and blow-by. |0$i31 ?« order to solve this problem, the Invention provides a honing prethod with the features of chore I. Furthermore, a honing tool with the features of entire 6, which cart be used within the scope of no hvnmg method, w provided,

ItitiMj Advantageous developments are specified in the dependent cialtns, Ths wording of all of the claims is provided by reference to the contents of the-description. ihOISl in site honing method, a bottie-shupeti bore. Le. a '»ore having a hottie shape. Is produced. A “hottie-shaped bore” has, directly following a bore inlet, a first bore section with &amp; first dhttostsf, a. second hors section with a Second: diameter, which is larger than the first diameter, away front the bore Inlet, and a transhton section with a continuous transition from the first diameter to the, second diameter between the first and the second bore section, The first bore section and tin-: second bore section generativ have a circular-cylindrical basic shape and he eoasatily with respect to stach other. The transition section can he partially conically formed and can merge at the ends thereof which face the outer bore sections into thst adjacent bore sections, its each case with suitable radii, fOiHb] Gi ven a suitithle configuration of the feottie-whaped macro shape, substantial advantages can be obtained with respect to reduction of friction, reduced blow-by and reduced oil consumption. Furthermore, improvements in the wear resistance of the piston ring package and positive Influences o , '} jo >. ip 1 , i no e w tug he * vvu ' t u>< >x ptov, -.ο \ , v Amt, } -v* e tb, < on buw o ' in an internal combustion engine takes place in the relatively narrow first bore section in the vicinity of the boot nlct, - < n tne Ό, tt e i eik" η possible Inch gfCMwov et <ti m this section cottid lead to emission and oil consumption problems, in this narrower first bote section, the annular package of the piston tings can readily carry out the conventional functions thereof fin particular the sealing -.against combustion gases and the scraping off of the oil film In the return movement) because of a relatively high edge stress, fly means of the pressure waves ofl.be combustion, the piston is accelerated in the first bore section anti fetiches the transition section with a gradually increasing diameter. In the transition section, the piston rittg tension is reduced by increasing the diameter. Since, however, st considerable piston speed is already present here and the Internal pressure in the cylinder space is diminished, blosv-by, oil consumption value and engtne nol.se emission ate not adversely affected, fly means of settable t atilt between the trausuten section ami ths adjacent fitst anti second bote sections, a mn to m> ts mr oi tv ο» co ongv u>l '.i ' >'t< i <p h, n, \ ,n n nu a G t cw » euv wear ot engine seizures can be pvpided, in the downward movement, the annular package, after passing through the transition section, reaches Its lowest: tension on cutty mto the second bore section, and therefore the friction loss; it; automatically reduced at the ponti at winch the piston roaches its .maximum, speed;. |Dti1 ?j Within the context of the honing method, which leads to a bottie-shstped höre with « surface: structure optimum for use, during, at least one hotting operation use Is made of a honing tool which: is particularly suitable for this purpose and which is also referred to bare because of fee construction thereof as an "smrmiar tool'’, An "annular mol" within the context el bus application has at least one annular cutting. ,gt'Ofe> having three or more rafeally infeedable cutting material bodies which are distributed áronod the elreamferenea of fee tool body of tbc boaing tool and am conflgomd as honing svginents whmh we ichtneh onle m she «.ucunvomnuai dtrcrtmti "t fee honing feoi arid are relatively narrow in the axial direction of the honing toot The axial length of fee booing segments, as measured in the axial direction of fee honing tool, is smaller here thart fee width u-easured in fee ci mum fere mini direction, and the axial len ph of fee cutting region equipped wills cutting materiel h'feies is smadcr than the cíhente onhnbe diameter of fee honing sofe. (hOIdl if at least three honing segments are provided, the machining forces can be distributed readily ... , t K ι'\Λ clkU'i'0 sw,nt'V o\* > '( óba wavmkor v ,v,·, id n' - mn ol Os burnng O'fe and relanwls uufeuíule eset tlx cnetnnlcrenee lot e\:unp«\ pnxweis feme, psecsseh four, precisely five or precisely sis hotdog segments of identical or different vncnmferentntl width can be provided in a cutting group. Although more than six honing segments within a curtmg group are possible, these make the construction more complicated and are generally not required, {11019] Tbs ellent which can be achieved by the radial infeedsbihly (displacement of the honing segments in the- radial direction during the infeeding) is that the engagement conditions between catting materiét body and bore infernal surface remain virlunhy eonslant irrespective of fee diameter sei, Nononiform wear ean be avoided fey avoiding tilling of the cutting materiül bodies during the redial Infeeding. {fefSOj The measures ean have a positive effect individually and ist combination on the surface quality which can be achieved, in parbeniar with regard to the uniformity of the surface quality ever different bore sect ions, :{W2'1{ The axial length of the honing .segments. can be, for example, less than *«", of the effective outside diameter of fee honing took irt particular ean be between lObf and 30% of said outside diameter. In the ease of annular tools for maebinihg typical cylinder bores in engine blocks for passenger vehicles or trucks, the axial lengths can be, for example, within the range of 5 mm to 30 mm.. Based on the bore length of a bore io be machined, the axial lengih is typically less than 10% of said bore length, i f the upper bouts are significantly exceeded, the possibility for axial following of life centonrs or production of the contours generally suffers, In addidon, small axial 'lengths arc advantageous in order to produce a sufficient surface pressure for the machining. On the other hand, a minimum length in the axial direction Is advantageous in order to pertnlt a honing overrun for machini ng the bore ends and in order to lim it a tendency of the honi ng tool to ti lt. fdöit'S] An annular lool of this type comblâtes; a reversal of conventional concepts of fee con figura lion of a honing tool that are based on the fact that, In order to obtain, small shape errors in a honed bore, honing tools having hurting sticks which are relatively long in the axial direction, but are J‘> wk na ton it the > i%\<nf ! in x t,n < hoe e be mod \n , ' In , > < - mteuknh readily adapted io the machining ol bohle-shaped bore shapes or in general of bore shapes having a bare dia net .a wissen s.gOitie.i an, w.-.w n u c >i\ud domus-n in w. winnkr strung grou’", fet cubing material (bonded cutting grains of suitable grain size, density and hsrdness.i is concentrated in an need s to.msch ιηιι-Ά nng. whetem txpwd λ moto that' half o* foe -, .Kunoftcncc o* no .munfu cutting group is occupied with cutting usee,ns and accordingly effeciiveiy conirihuies io me removal of rnatedid, ibfofo in comparison to the effective outside diameter of the honing tool, the cutting régiest ist which ene<>t -t'O'e mmdat mmmg u’oyps be n? ,·>!. vonton m the asm. dneotu"' u a tosne v^wb^htm production and/or following of a contour running in the axial direction is possible. β1θ24| in comparison so conventional honing siicks, an annular easting group is distinguished Its that there is substantially snore contact surface between cutting material bodies and bore internal surface in the ax'lal section covered by the annular cutting group than in a comparatively narrow axial section of a conventional hotting tool. In conte embodiments, with art annular cutting group, snore than 60% of the circumference. possibly even mote that:· 70% or more than 80% of the circumference of the honing mol ts occupied wult cut'ntc morn- fCtdSSl A cutting group is preferably arranged in the vicinity of a spindle-remote end of the tool body In such a manner that the cutting group Is exclusively located in lit© spindie-remoie naif of the tool body. If a plurshry of annular cutting groups are provided, this condition can apply to ail cutting groups. An arrangement in the vicinity of the spindle-remote end permits. Inter alia, machining operations with a very small boning overrun, |δ$24] During honing machining, the stroke position of the honing tool within the bore can be used as a cotnmand variable in order, with high local resolution, to predetermine the press-on pressure or the infeed force as a function of the stroke position of the annular cutting group. As a result, it is possible, with the and of an infeedable annular cutting group, to produce a bore with an axially variable contour or else to follow an already previously produced, axially varying cortiom without undesired contact pressure force peaks. When an annular tool Is used, the operation can be carried out in all axtai regions of the bote with substantially identical overlap such that, when the treed arises, htghlv uniform roughness inrages or surface structures can he produced. When an annular tool is used. the operation can optionally also be carried out with a very small honing overrnn at the ax ial ends of a bore without problems with nonuniform wear of the cutting bodies occurring |»ηΓ4 I ne 'p<.mt.> b aefomho i ; .? n ou .t , c<.irorr„\ hum..,. euttmr-' o purnzd ' ,^m b (.ouKust to a nsdruuitt cv.xu'm w, a own we pn'de'.etnnnut'oo <d the tntceo tnu\ tu,.. o’ .untroF ss thereby possible, as a result of which an axial contour can be produced in a specific manner and/or a predetermined axial contour can be precisely followed, |0ID81 (.foe ot mote sensors of a diametci measuring sweto e.m be mumped on the Itomng foot, and therefore an in-procoss diametor measuretneet Is possible. For example, measuring nozzles of a pneumatic diarneter measuring system cars be attached in each case to the tool body between adjacent honing segments. By this means, the precision of the bore contours which cars be achieved cars he improved. $8291 By means of the w of an armuisr tool, otbferm W bf the cutting material bodies and very good shape values and uniform. .surface roughnesses of the bore are ensured over the entire surbwe life of the annular entring group, feXkMl| Biiferertt configurations of annular tools are possible, between- which a user can choose depending on the machining task to he carried out. phuq ’} s'Ux <uKdsunns k mne v B ' v s c‘e u -, k '>' , segroems of which eon k- fed in radially or pulled hack vis s single common infeed system. The annular cutting group typicstliy has three or more, generally no more than sis, honing segments distributed unifonniy or nonunifortniy over the circumference of the hotting tool. The single annular cutting group is preferably arranged in the vicinity of the spindie-retnote: free end of the tool body, for exautple flush with the spindle-remote end side- Gonstruetltms of this type are particularly readily suitable for machining cylinder bores with a reduced honing overrun, Restrictions of this type in the machining arise, tor example, in the-case of blind hole bores or in the case of cylinder bores in engine blocks for monoblocfc engines nr V engines. $832 f It is also possible for an annular cutting group to have two groups of honing segments which are iufeedafeic independently of each other, wherein the hörtíng segmenta of the groups are arranged in an alternating manner in the circumferential direction. By this mutins, it is possible to combine the advantages of a single annular ending group (for example with respect to the machining of bores with a short honing overrun) with the- advantages of a double Infeeding of two groups of honing segments which are independent of ouch other. With a tool of this type, two consecutive honing operations cap be caibied out with different «»hing materials without an intermediate ebtmgiog of the tool, The honing segments of one group of honing segments normally have the same cutting layer while the groups have cutting layers which differ from one anmnen fut uwe.oh'd.unond lawm of dufemm grain Sisk. |Ô033| II is also possible lor au annulai uni ό ho ' a fn c nrsonhu cnhmg U" -p and « kaw mm second, rntnuiar ending group which is arranged in a manner offset axially with respect to the first annular cubing group and can be infed independently of lb« first annular cutting group. By -bis means, two consecutive hoping operations are also possible with· different- «Utting materials without an Intermediate «hanging of the tool. Since the different cutting materials are distributed io tire at least: two annular cutting groups witieh are offset axially in relation to each: other and «an each cover a: large pest sue w'cmmesence ,d 'be boom' uvl, putucuiatu h gn temo\ d ,m\\n'es os wktw<K Muet honing tintes are possible here In both hehing operations. Annular tools of this typ« can he used ter all bores which permit a sufffeieni honing overrun. With two or more annular ending groups, bridging of pulsation windows or transverse bores or bore interruptions: of any type Is also possible in a particularly simple manner. Such an annular tool preferably has precisely two annular cutting groups, as a result of which flexible-uh s? possum despde a simple construction, ρ)(Ι34| In preferred emkxhments, ars hneur.ned, mulfiaxially- movable·· joint, tor example a hall and socket joint or a cardanic mint, w ptowded on the tool body. Position errors of the machine and/or a core offset of the bore can thewht be vonmoasated for without changing the bore position, Ekerngiarv embodiments wlthdut à joint are also possible, Arm-ear tools of this type can be coupled rigidly to a hi' wkI' t i >< ? Μ1 >1V ' p<v rrgni\ o *' ' > ! 'g > ό - gltkfih The hoble shape of the fene caw be produced by any suitable ehipuemovirtg m&amp;chtrfmg method, tot ewnnpte :‘\\ psemsu'n monng (preen,ion spurdh-st, ne. wub d-e -ud m a ntacmnmg ntcthod with a geometrically determined euomg edge, or by means of honing. This can be followed by » ot more honing operations in outer to »οΊό at the finally desired bore goonteöy with. a sullable surface structures :|WMJ Ä- bore with a. eircuiar-cyiihdrieal bore shape is preferably initially produced by precision turning or hotting and then, in a bottle boding operation, a bohle-shaped bore shape Is produced by boning· with axially varying honing removal, lo cetnparison to precision turning, surfaces can be -produced with a particularly uniform surface quality without peripheral marks by oteans of honing. The self-sharpening effect of the suiting material bodies also contributes to the tmifornxhy of the surface- quality·. In the ease of boning, continuous precess monitoring is possible, ndtr'l h< a method sarum, donne the podle boumg operatren, use w made m an , spendable honing tool having at least one annular cutting group, be, an annular tool. Honing segments of the cutting group are infed radially outward here ist 3 travel- and/or foree-eontrolfed manner in a downward stroke in accordance with the bottle shape depending on fee stroke position and, during an upward stroke, are retracted radially io accordance with the hottie shape depending on the stroke position, By means of this tnaehming variant, a relatively smooth contour profile is produced from the outset in the transition-section which is particularly difficult to machine, |003d| Alternatively, if is also possible shag during the bottle honing operation, use is made of an expandable boning fool with honing slicks, the length, of which is mote than 50% of die length of the bore. The length of the honing sticks can be, for example, between 50% and 80'% of the length of the bore, önring the bottle honing operation, in a first phase, the Stoning tool is then moved up and down or to and fro bedween an upper and a Sower reversing point m &amp; first stroke position, in order to bring the bore initially over the entire length thereof Into a circular-cylindrical shape. Then, in a secomf phase, the upper reversing punt w changed -incrementally, i.e, by a plurality of strokes, So the direction of -he lower reversing point, and therefore ibe stroke length is gradually reduced. As a result, the stroke position is shifted in the direction Of a second stroke position which lies in the region of the second bore section. In a third phase, fee honing tool rs feen moved to and fro in the second stroke position, In this method variant, fee basic shape of the transition section is substantially produced during the second phase of the gradual shilling of the stroke position and reduction in tbs stroke height, wherein the increase in diameter in the second bore section. Is also produced both at fee saine time and in die third phase. |003dl If the hottie honing operation is carried out by moans of a hooihg tool having relatively long honing, sticks, a. relatively rough surface structure wife, a profile similar to a saw profile can be produced ixt the transition section. In order also to obtain the desired uniform surface structure 1rs. the transition section, a smoothing honing operation for smoothing the bore profile in the transition region is tnercfoie curried ont prefemhn afiet the fe-rtte h nunc 'pemuon, wherein ,m unntdar mol is used m tbc smoothing hoeing operation,· be, .an expaiklable honing tool voth st (east otw, srmtslar entdng.group. With the aid of ihe annular tool, grooves or -hum .1«, the transition section ca« he eitromamd and: the, radii of the -transition section ca« be rounded, (40411( is has proven .advantageous If during (he smoothing honing- operation, the cutting- .material bodies of the annular cutting group are .pressed with a constant Infeed three onto the internal surface of the bore. This is achieved in some method variants in that, use is-made of a honing .machine having a, \ , ! U ' X' X« ! o Î, l K \ I ' x'x !' x I X x> Ux x '1 W. " * U ‘s '1' \S *" X >\ the -hoplng segments of the annular tool can already be produced here Ibom the dssigu-lnduecd hewedur m the h\ Orauhc expansion 10041) The invention also relates to a honixig tool which is suitable particularly for carrying out the boning method, bet can also be used in other honmg methods which are not according to the invention, :|@042| The invention also relates to a workpiece .with. at. least: one bore· Which has: a. honed internal, surface, wherein the bore is a bonle-shanod hors which, following a bore boot, has a first bore section, with a first iliasr-eler, a second bote section with a second diametet, which is larger than the brat di&amp;tneler, away frotn she bore ittlét, and a transition section with a coaltnuotrs «átváltott front the brat •to the second diameter between the first .and-the second bore section, wherein the, workpiece has been •machined'using «.honing tool aecordingto the Invention, ;|W43| In particular, the workpiece can. he à cylinder block or a ·Cylinder Unef for a: reelproeabog piston machine. The reeiptocating piston machine can be, for example, an intentai combustion engine (combustion engine.) or a compressor. ÖKIIhi' OKSCRitniOX flit i'kA'oi\w$ ((1044] big, I. .shows a schematic longitudinal section (brotigh, a botilswhaped cylinder bore irt an engine block; (0445] F'ig, ? x'nows, in f.w, ,·, lengitudmsl wcuon rmeugh an emh-'vbmem vf art snnutar tom w-th single expansion of a single annular cutting group and, in 2B, a cross section through the cutting group; (01146] fig. 3 shows,, in 3 A, a longitudinal section through an embodiment of an annular tool with double expansion of a single annular -cutting group and, -in Tbk a cross section through the cutting gi-wctp; (0040] Pig.. 4 shows, in 4Á, a longitudinal section through an embodiment of an, annular tool with double sxpsrisiop with two annular cutting groups arranged one above the other and, in 4B, a cross section tlvotigh >me ol the cuttm« group,,.; (4418] ' u 's'oo xxtum,u. <.<Pb a t"«f mwlwu' Ka ' u no e w ' ·, t\ ttx' < ' hx 'xux of a borii:ng tool having relatively long honing sticks; (0(144( Fig;-6 shows, schematically the stroke position nPa honing tool having long honing sticks as a k 1 t>'î t « s' i > ' g η ' e uí V Ott e n vuu > 0 \ a 1 '*1 [H)dO[ Fig. ? shows a -.measuring diagram. of a rounded profile of a hottie-shaped cylinder after the use of an annul ar took [hhStf Fig, 8 shows a sohetnauc filagmm which shows (he dependency of the síroké position HP , >e he>'> nut » J' o\|\'' w ,w'v > v \>,".\>,ι^ι > citi\ "to"\ mw uy\'na exemplary embodiment,

D \ e xK ' O' Di Mi ikb H\ vr \R MHODfMBNTS

[0ö52| The following is a description of exemplary emhothmen»s of honing methods and hoeing tools which «an be esed within the context of embodiments offne invention during the material-removing machining of workpieces which haw one or more bores which, in the end-nuiehlned state, are Intended to have the macroshaps of a hottie, (tuWi t ., I x'oes ' -„ne 4 »» j,<jt i, s - Ss< i j , M-etn' > e » >. >ot le -inged ho e 0 in ' uorkpwee Ibb sn She form of art engine nmek uxlindet u,mk e;wci for an internal combustion engine The bői-e is mt at;on rli\ v, mmetrieai nsth resnem to the bom ^\is i : 2 tlwteof and extends ow-r a bore length L from a bore Inlet 114, which faces the cylinder bead in the installed state, as far as the bore outlet 116 at the opposite end. The bore can be divided into three mutually adjacent sections of differing function W'hich merge in a sliding manner in css? another, i.e. without the formation of steps or rdges 100541 A first bore sectum ' ?»' at the inlet-stde eno has drst rtunnoter t»l non a first le-.,u." t t At

A d'pos ' m T '0 1 x w-.ua ! . e t> ' ! Ου ό -ad, inn <rer a\ ' to di une et i U which is larger than the first. diameter Di, -extends over a second length L2, A. partially conical wanvUmn w\t\r> 4P, m which s --oeonoou* ’Wimî.i'H nom the fn.e diameter u- the »eeend timmeat takes place, is located between the first bore section 120 and thé second bore section 1;M A first i tdi'is l\ I Hom, l\w\ owe'!' s boám - ο -,i , nt o ih'vw· ion set ΐ'οιη,ΙΊχ u >, bore »croon, wnde a w\o»sl tadtus R? n ’ormod iatween the n,vwsnon sauen and the s,aon,t hon-.eetion 1'he onio Rl and R' <uo ho odwhn natty > tenveai but o is u„>. povnble fertht f.r<t tuslms t>s be smaller or larger than the second rsdius, (0055] in the ease of typical bore geometries, the first length LI can be, for example, between 15% and 40% of the bore length L, 'The second length L2 is typically larger than the first length and l.sfjuent'i. η- ιγλμ" Uî% and <<Ά et »hs iw-re length λ 1 In η», wn ·" station is u< tnndh ioao-oh short in relation Io the adjoining bore sections. Typical third lengths L3 can be within the range of 5% to 20% of the bore length I.., Déviai ions from said geometrical ratios are also possible.

[th)S&amp;l The diameter difference between the first diameter DI and the second diameter D2 lies significantly outside the tolerances which are typical for the honing machining and, for a cylinder shape, lie within the order of magnitude of at maximum 10 urn ibased on the diameter). In the case of an absolute value of the mslde diameter in the order of magnitude of between TO nun and I SO mm. the diameter difference can he, for example, between 20 pm and 9(1 g,m, (0(159] The radii Rl, R2, the lengths of the outer bore sections -trnd of the transition section and (he tangertt angle T between the bore axis and a tangent to tire transition section cart be optimized sn soch a manner that lew btow-by, taw oil consumption and low wear of the piston rings are produced; in typical opeofoog states of the eoghse. pí8í$J fin bonk, shape of me hose testibe in the bon· tx-mg eomporsitheiy n.irr-?w «; the regsvn m for vtalnUy of the inlet, and therefore die pssfoe. rings of the-piston moving in the bore are pressed against the bore internal surface 1 to under high edge stress. As a result, reliable sealing is achieved at the location where the comhustiou primarily takes place: and high pressures occur, and the oil Mho Is. scraped off In the downward stroke. The platen, which is accelerated. by the cotphusdon then: moves in the direction of the bora outlet, with the piston rings first of ail running (psrtiáhy) through the transition section with the continuously widened inside diameter and subsequendy through the second bore section. The pistou rings can gradually relax, in the transition section, with the sealing remaining to a sufficient extent because the pressure difference drops- at the piston rings» At the beginning of the second bore section, the ring package reaches the lowest stress thereof, and therefore friction losses arc reduced precisely in the region of maximum piston speed because of reduced edge stress. During the upward stroke, the edge stress then Increases again as soon, as- the piston rings reach the outlet-side t R t Ο IX il«>. < « U >' SCO t 0 th O, g' , «' OR ' 5 ' »RX I,'· > t \ i \ \ 1 ' itiudpj A precision machining process which. can economically produce such, a bore both with respect r Ir n » osho^R iho< k shtp') ufo r ' ivku , d . i,.l" h < og \ n * wt ^ce bore internal surface in high quslto compnscsj in. the embods ments- of Are invention,, at. least one. honing operai ion, in sehich use is made of a hoeing topi of particular construction which is- also referred io in this, application as an “annulât iu»>Vh An anrebsr tool has-at lotto ..one cutting -group which, i-. ·. .oh to Ar .< d oto or-hto \ tong -roo s KwruiR' u'i'rrKriR’ wto? circumfbrence of the tool body and can bo infhd in the redial; direction by means of an associated infeed system, or retracted. The cutting material bodies are designed os booing segments·, the width of which is significantly .larger In the circumferential direction than the length thereof In. the- axial directiou. The cutting material bodies responsible tor removing material fro«! the· work piece are concentrated in an axially relatively narrow cone .(a ring of the cutting group)· amt take, up· a relatively bn -e porveo ef too ctR.«' fciouco « d *- tremng sooi to ,< r-s.-.o Kxe .«npos (> or ,0 poo, of differing diameter are adjacent to one another in the axial direction eon be produced wstb a, relatively high material, removal capacity. fitohhf Fig. 2 shows, io 2 A, a longitudinal section through ap. embodiment of an-annular tool 200-with a. single annular cutting group 230 and single expansion. Fig» 2B shows s cross section through the cutting group. 'The annular tool 2bb has a tool body 31Ô which defines a tool axis 212 which is· at the same time the axis of rotation of the ring tool during, the booing machining·; A coupling structure (not illustrated specifically) for coupling the annular toot to « drive rod of a honing machine or of another machining machine which has a working spindle, winch is both rotatable about the spindle axis and also movable m an oscillating manner to and. fro parallel, to the Spindle axis, is located at the spindle* side end of the annular tool (at the top In fig. 2 A), |00οη ) re 5 ! a <o; < i>tn Í R pH d s v >* ' i * * ' '1 R r\\ 'to , cutting material bodies 22(1-1,220-2, 220-3, which arc distributed tmifnrmly over the circumference of the tool body and can foe mfhd outward radially with respect io the- tool axis .212. with the aid of a Coding: material body i-nlfeed system, in order to press the abrasively acting outer sides of the cutting vunott', I'Ws ntn t do fsn,'»t,-m n't grcsune >>r ptxc'> on Ot,e ig.nno the ','ieta.d uvE-ve of a Kuo to tv maci na'd f\ Umsted m the »mod le-re mot? eno of >ho \\>ä in\is gu >nc bottom m f.^ ? Ό t ,nh of the three cutting material bodies, which -are carved areuately, is designed as a honing segment which is very wide in the cucutuferertiisl direction hot is narrow· ih the axial direction and which covers a circumferential angle regien of between 1 l$e and 120*. The honing segments ans deeoupied .feom the tool body and are displaceable relative to the latter radially with, respect to the tool axis SIS. The-ring formed by the honing segments ends at the spindle-remote side flush with: the tool body· such that the. ring sits completely within the spindle-remote half of the tool body at the s.pindie»remotc end cf the· annular roof hXhs2| The axial length LÖS of the honing segments is: less than 15%, in particular less than· 10% of the bore length 1-. The height of the honing segments is approx,, 4 mm to 35 mug in particule? approx, 10 mm (In the axial direction). which, in the case of the example, corresponds to between 5% and. 30%, 1rs particular between 10% and 20%, of the effective outside diamete?? of the cutting group. The axial length LHS corresponds hete at the «une time to the :»\». ? y;d- of the entire cutting region- of the honing tool, (00631 Each cutting material body is fastened by soldering to. an outer- side of an associated steel support strip 224-1, 224-2, Alternatively. the cutting material body can also-he fastened by adheslve bonding or by means of screws, as a result of which easier replacement is possible. The inner side of each support strip has an oblique surfhee which interacts with a conical outer surfîtes of an axially d phue< u> de, η,,,κ % meh a min >e? did », \»<->"it i m h<i ' d' oit y rne Kn »'s canted by them are iofed radially outward when the infeed- cone is pressed to the direction of the spindle-remote end of the annul.« tool saunter to the forex? of restoring springs 2.34, 226, 225 by means, of a maehine-side infeed det k? In the case a' an opposed jrdeed movement, the. support, strips are retrieved, radially inwardl> vr.h tit*, hmtmg segments with the .aid of peripheral retrieving springs 220, 228, As a. result, tbs? radiai posthon v* the or to ng motettái bodies Is eonlrohcd m a manner free from play via the axial position o ' he tnieed con* % 2 (OtWf This tool concept is particularly suitable for machining cylinder -bores with a reduced honing overrun., for example with a hoping overrun of at maximum 5 mm. Geometries of this type typically-occur in the case of blind hole bores or in monoblock engines or V engines. p)0h§Í Fig, 5 -shows an exemplary sudrodhneot of ah ar-radar tool 300 which likewise has a single annular cutting group 52Û which is arranged at tlx? spindle-remote, end-side end of the tool body 510. Pig. 3 A shows tt. loriigitudhusl section through the ghfouiaf tool, ßg. 3S shows a cross section through fv euttim un-up H.-v-om, at m-nts io to me esrntj i.n\ ,mlwhuvm O’ bg 2, a ho.'osp too, v 'h double expansion is involved. The annular cutting group 320 Pas two· groups rtf hotting segments svhieh are tofeedabie independently of each other, wherein the honing segments of the groups are each· arranged ht an alternating mar-net’ with respect to one another in the circumferential direction. A Erst group of honing segments has three Erst honing segments 320-1: arranged oEsci eircuut:tbronf;ally with. respect to ősé another by Γ200 in eaeb ease, Tbree second boning segments 32ffe2 of a seoöM grööp of höaiog segments are Itt each Case arranged therebetween, Tb« rhé croup bas uttttb-y· teaterlal htohes with a relatively coamo cutting layer mfitie tbe Secostd group bas eadmg nsaterlas bodies with a cutting layer whtçfi. is rchblvely finer with tespeet thereto, Axial guide stelps 326 are In each case arranged Isetwetm dtrcesly adjacent boning segments, Λ báb and sorbet joint 350 is provided between bo too! bgdy 3id sod Sb« coupling stmedtre which. is provided for coupling ttot hotdog tmd to a working spindle or tbc like, md iberefrws the boning tool is movable ton limited extent in a piamilty of axes .in teteUoo to d;« hwoog apmdi® idbbdl Th« fim honing: segtnents çati be Inted radially wdb tbe aid e:f a. first hrteed system. Tis« labor bteiados a hrst Infeed md 222-1 which run* ecbdully aa tbe tool body and, at Ida spindle-remote end, has a eottleoi seenon « hieb Interacts witb the obliipts soriaees of suppett strips. ef the first gtoup Of boni ng segmente. A second intesd syssett; serves for trbeeding the second grstup of horslbg segments aod bas a tohnfisr iafeéd element TfifeA,, which easiness the infeed rod Tfifil aste, al the spindlc-remote ettd tbereofi has a conical haw surteec wbleb onemets with: obhtgse surfitces un the support strips of tbs mooed finning segntetbs, plbeej The three hotdog segments of the first group of boning segtnents can he expanded wife she aid of the first infeed system in order m carry cut a: certain boning operation, ihr example a stuootblng boning operation or a struetnm boning operation, Ifi instead, the other group of honing segments wbleb have a dsiweot type of ebbing layer is infed, a different ironing operation, fer exarhgle e deburring hosting operation or a plateau hosing operation, eaa be carried ont. With the aid of the anndiar tool with doohie expartsloo, neo dlffereta honing operations can be carried out successively without fb tile meantime oabertekbsg a change of tool er «sing a different honing spisidle for Ibe taaehfnlng. jfefefil big, 4 shows, ist 4Ä, a sehetnaite losgbodloal section tlmnogh aa enthodimenr of an annular tool 40b with doable expansion, which, in contrast to the exemplary embodlsneat of fig. 3, bas two annular catting groups 420--1 and: 420- s winch are attached in a manner offset tonally with respect to each other 1st the spindle-femme päd Of the tool body 410. fleets of the annular cutting groups (cross section in fig, 48s has three eemmon infeedahle hotting segments winch each, «over between approx, i 111·' and f fete of the elammfeteoce, By contrast, tbe aesal length of the honing segtaenis Is stnail tard is typically less then l(M of the here length and/or between 10% and 202% of the effective Ohtslde dlssrneter of tfie honing: tool ia the region of the etdtlhg material ifodses. Measuring nofeles 440 of a peeatnnbe dlmnetcr measuring syriens arc io each case attached to the tool: body between adjacent boning segments, The cutting groups arc located asiaOy close to one another such that the cutting region of the honing tool, la which the two annular ending groups dr® loeaied, is substantially shorter fit tbe axial direction than the ofièelive outside diameter ef the boning ioob filCfifitl its. some embodiments, the ending tnuierial bodies ere dlouhted In ah elastlotdly flexible manner with respect to dm -col body. As a result, tile capability of felloWing the «0moors dohog the axial nmxement can optionally be fioprovsd. For example, spring elements (for example, leaf springs:, spiral compression springs dr the iifee) can be connected between the carrier ele menta and the oust ing material bodies. ft Is also possible tb dósig® the earner elements to be eiashcaliy flexible per sc. for example by weakenings of tbc carrier ooderlal cross section in the form Of slots or the i:1ke beteg streetorellv provided at settable points.

Ib0"0| Ibero are x.tttous Ρ'.οχιοηηί,ο, tot ptodueoig t-^beoh ipcd boww Mtii dei.md surface streetore of the bore lotereal sorfitoe with the use of <me or metre annular tools of the type described in fids application, A first exerppisry embodirneni is described'to eoeippettoe wish figs. f and 6. ftîft'l| atii'Cv'tv? ό mi’XsX,, t ft ,. ,d e'rmv'n nsde < ' ι o bn >ηι» vendis t.vaa \ ? >v ’"nip 4<κ> <' uh > α' no ι>«η ο c 'κΙ>.\>' O' ,'sampie n> pie,'noon duhrn,,,, r.s oro-toce a honed vore with a strsui«r-ex'hnder shape I be oust sock kng‘b >s^«aooo\ 'to' - ' heeittehor, s"g,h I hm b < 5 si homng >>nei<uo mo w \-w hotnu^k she openft'oo is ax e,u'ricd sea usitts: diamemi owl s it’ O, ne Oif·’, ,nul a i-iTi,equeni intermediate honing operation was carried out with a one grain sise (grain size D?4.s As a result. a substantially circuiar-eylmdrieat bore shape with little deviation from the ideal shape and with a icianscis smoot ' tk -- k j. m) wax p'-Unvcd lee mtot-.-ido mft onrh’t-snh honing i"·-' tun $ here was approx. 1/3· of the stick length, similarly ax ?n conventional methods. The boning overran can K ivo icvo do' mg the m minőm,,. et \ - ot ΐηοοοΗοοχ wma-u |0h?2) A subsequent tim'd honing operation was designed as a bottle honing operation With lit« aid of a bottle honing operation, a botlie-shaped bore shape is produces h\ axially varying removal of sPáieritd using geometrically uodefmed coding edges. In the third boning operation fbottle honing operátirmS, the operation was nkcwisc cameo out woh mbuoeh tong Immog őneki w uh a stick length I df? I, and a special stroke control which is explained with reference to fig 6. fig, 6 schematically di cw the sttok, j > -- a n V' ihx hot g I >' u' , 'text ,. t >t "w ion v Pvt du n - re 1 -n , 'morn,., op.">ct. t s te w -tt on >-i t isntng lu "x >vx.hi " v ot the whni>\ , ,x proceeds from a first time ft to a second ilote t:i with the same stroke length in a first stroke position precisely as in the case of tine machining of a cimular-eylindtieol bore. The term "stroke position” refers here to dx- region between flic npper teverxmg poms W and the lower reversing ooins t’H vf a reciprocating movement. Each shifting of a reversing point therefore aixo changes the stroke position. |hOnl| from a defined second time t> the honing nx-tehnte automat halo switches oxer to an incremental change in the stroke position and, after each stroke, I he tipper reversing point VO Is, changed incternentaliy in. the direction of the lower reversing point VU. The temporal position of the second time ft., can be defined, for example, via. a certain number of i-nokes or via a predetermined honing time or via a predetermined removal of material or another triggering parameter; The extent of the I no rente nt IN about which, the upper revising point changes between two consecutive strokes can likewise be adjusted a.x required. .After the stroke shifting plusse bas ended at a third titne ft, the bore is honed with the '-ew ihstd stroke poxttsen leashed am·· the soc-md bote \Mi-» tea,hex the dextmd diameter and the bohle shape tcf. fig. I) is; produced.

Idtf’tJ Depending on how the ncientent,fs tartanon m tlx. Urol < sbittmp one, tbc tempoxd sequence of the stroke shifting are predetermined, different radii and tangent angles arc produced in the transition section. These parameters eon therefore be predetermined via the parameters offne stroke slhhtng, The bottle honing operation is cxpedlehtly Carried out with hpnlhg sticks, tbs cutting msterkd grains of winch ars finer than those for foe preliminary ironing or intermndlat« hotting. For. cxámpls, the operation can he carried out with diatnond grains within the range of D35 in order to obtain a bottle shape-having »..surface structure which is already relatively-·^®; f&amp;b"?fo Durmg the production of she bottle shape wnh sh« aid of relatively long honing strips and u ί so « so' , t' , , u \ ,.., ' ·" ' , \ ' \ \ 'g *' dt co1' ssrn » io , '»Oi k' 't O '>' gS 'd, , ' ' ,C t i'· ,! > (. 'U R < < \ S' \ U X Ik '0 <. f UÍX t. i ,,1 ,. )·. S ' 1 ' \ ί n , ' +î , , < Bi ' '! ' ' S < , O', S< \ M í,i\, 'Í < t !·, including the transitton section and the adjoins ng radii, Iss the method described here, after the hottie hosting operation a rounding of the radii and smoothing of the surface are therefore carried out wish she fod of an annulat tool The eperre ion here can he carried eus w Uh er en fner cutting means, for .camp's' w.thu' the ;,«!>.,? of |ttv to !>fo ,rpt wohn Os' i x whsm-s’^t s sur.foie w md n tool (for example single expansion, double expansion with two cutting groups, arranged m a constnon nog. or dosible expansion with two cutting groups, arranged 1st two axially offset annular cutting groups), depends, inter alia, on the design of the cylinder block. The tool selection can he oriented, for example, to the -extent of the possible honing overrun;; and/or to the position and size of transverse bores,· if, for example,, a cylinder crank case has a large transverse bore, It is generally expedient to carry out- the· operation using an annular tool with single expansion (of., for example. fsg. 2t in an exemplary process, use has been made of such an annular tool with an annular cutting group in order to smooth grooves or burrs which have arisen in the transition section during the machining of the hottie honing operation. With the aid of the «nnular tool,, the radii of the transition region can also be rounded and foe surface values changed in such a manner that they are substantially identical to the surface -'dues m the adnneut fsrst and hard bon seeueus, 10876( To this end, tig. ? shows a measuring diagram of a rounded profile of a bottle-shaped cylinder after use of an annular tool with single expansion in the process illustrated here. The scale on the x axis of the diagram {parallel for the here axis) is 5 w» per -unit. of measumntaul shown, and Oh the y axis (in the radiai direction of She bore) is a unit of .measurement, of 1 0 urn. (8877( The use of an annular tool not ortly affords advantages hero in respect of the smooth, edge-free profile of the bore contour in the axial direction. Since, in the case of annular tools of the type described here, the cutting matériái bodies of an annular cutting group occupy a large part of the ci re urn fere nee of the booing tool (for example between 70% and 800»), a very uniform overlapping of the machined bore Internéi surface is also produced in all axial positions during the ironing. The terns "overlapping" refers here qualitatively to foe uniformity of the distribution of honing grooves over the entoc hose length and the circumference. If use is made of conventional honing tools having axitdly reladwh long honing sticks, under some circumstances a nonunifonn roughness or waviness can be generated in the bore. Depending on the design of the block, this problem may occur even more < <. teh ! et λ, ' í , eon x x \, wa ' u nw< ' , w un u < m* g kx t on let'' 111. „ < <we of a honing tool outlet of not « few mid'.n-.eters in length, a nmumif'-rm wear --Ί the long honing seeks .may occur, and therefore the bore may obtain a smaller diameter in the lower reversing point than sn ide upper reversing· point, Although aueh ptöblems -should be substantially twotded 'by selection of suitable honing parameters when conventional bosh ng tools (with long honing sticks) are used,, the coutlgorstdott of the -corresponding boning poscesscs is relatively time- and crwiritrieosivo. A plorslity of tests frequently have to be carried out until a honing process configuration is optbniaed such that nootmifarro machining with long-sticks is avoided. When ah annular tool is used, &amp; multiplicity of the conventionally deeurrmg problems fonn he avoided. The advantages of annular tools include, inter alia; 1, Because a large portion of the rheum lerenee of the hotting tool in the region of an annular cutting group is occupied with cutting material bodies. a bare internal surface can foe structured much more rapidly with the aid of an atusuiar tool than with the tad of a stick tool, As a result, cycle thnes can optionally be reduced, 2, if she stroke length js adjusted in order, for example, to correct the shape, no annoying nonuôiiôrtnîtiss in the distribution of roughness arise vhen anualat tools ate used, since the overlapping ts retained even when the stroke length Is changed, 3, Annular cutting groups wear substantially uniformly, and therefore undesired ceniciiies css be avoided pariieutarly in. the region of the lo wer reversing point when annular tools are used, d . The htsfailadoo of a boning machine ibf a new honltsg process Can proceed much more sttnpiy sud p<' \ i ,n i η H ixi i\' o\, ’ r í -w „ <.o tu } xr ukh< tv << h tt a co I i >. < wtkyx o s. x », mflk semis 'uniform within the scope of the reoauenunts luxomé of the tool cousttuctum, lift 'hi it ixukWxi, ?"ul sfnvh '^i'mcp tv. s m ,, ol m , x , wdhOto single cutting grottp ring sod double expansion fcf, tor exurdple, fig, 3) for the sfrocftuáug, it will generally be required to increase the stroke number Io comparison to the use of an annular tool with single expansion, in -order to ensure a undbrm overlapping. However, the sdvatrtagus of annular tools afe niatpiained and the required number of strokes for a uniform structuring of the bote mlernal surface Is still always lower than the corresponding number of strokes during use of a convenrisosl honing tool with long Ironing sticks.

When an annular tool Is used, the Infeed force can expediently be exerted by means of a w,)' ,. o^oui o' nd iixte o ' ’hr < i η, <. m lx sub-oat f \ m I tx e ♦ t t constant force, the following of the contour which varies in the axial direction can then be brought about solely by means of the design because of the flexibility of the hydraulic expansion. illOSOl .Aller ti-se smoothing of the bore internal surface and rounding of the radii with the aid of an annular tool, one or more further honing operations can subsequently be carried out in order to producerbe finally desired surfsce structure on the bottle-shaped bore. |0Φ85| The process described here by way of example is llrst of ail adjoined by a fifth honing 'Xti m w', J -, X e<x 1 X' <χ, » ,κ a sdsttu <hii' , 'W a uttwltt oo Oif's burnt' operation, the axxd speeds and the speed of rotation of the honing tool ate co-w'cunmed w uh cacl- othet in such a manner that relatively large honing angles, for example of the order of magnitude of 140°, rtre produced. Of course, in othet method variants, other homng angles and/or roughness profiles can also be produced, to the case of tire example, toe spiral structure honing is configured in such a manner that virtually no more global removal of material is obtained, bur rather grooves of suitable deptlx and distribution srss produced merely ;n the surface. xvhich ts very smooth aber the rout',ding operation, with the aid bf a relatively rough-granted cubing material body having s low ending grain density, For exampte, cubing material bodies having a ouhtug agent grain density of 1.25 io 15% by v<,;. and/or a grain sise of 35 to 200 urn can be used fee, for example, PE 11) 2005 PIS 277 A. I ). piESl Subsequently, io a sixth sod final honing operation, the previously structured surface is also dPu.oed td.'bemt'g honng^ 1 ot this pu-pose, use <s pmiemnb· i.hvwis.' o'.rlc an annula; to-Ί v bn tine cutting agents, for example the same annular tool which was also used for the fourth honing operádon (rounding of the radii stud smooth honing). 1 he operation here cart be carried out with different expansion types. The expansion type can he configured hydrsuiicaiiy/ hydraulically, hydrauiically/mechanically or mechanically/mechanfcaliy in the case of a mechanical expansion., the movement can be carried out, fbr example, in a three -controlled manner vis a servotneehsmeal expansion (hydraulic-Eka) or In a posltiom and foree-controlled manner, (011831 in an alternative method variant, use is made of an expandable annular tool in the bottle honing operation, i.e. when producing a bottle-shaped bore shape from a previously still circular-cylindrical bore shape. For ibis purpose, it is provided that the control offne expansion system for the radial infeeding of the honing segments Is coupled io the control for she stroke position so that the annular tool can precisely generate the transition section with the changing diatnetcr and also operates with a suitable contact pressure force in the? cylindrical first and second bore section (cf. ftg, S), The bottle honing operation can be provided as a second honing operation immediately after the preliminary honing attd in this respect eat; replace, the second to fourth homing operations of the first exemplary embodiment. The stroke-dependent control of she expansion then takes place m »steh a ns nmer that the hontng segments -,t the entung ,,U"»p me mfed tadmiis outward sn a travel- and for,s-controlled manner during a downward stroke 1st accordance with the bottle shape depending on the stroke position and are retracted radially again in the region of she transition section durmg an upward stroke itt accordance with the bottle shape depending "O the stroke position. Λ smooth contour profile -can thus be achieved in the transsbon section fforrs the outset, itldbai ibis van be achieved at -he honmg maehux b\ toe ο-, mat ten."", stoke >mgC' corresponding to the first to third bore sections are input m the control program, and therefore the cutting group expands from the end of the first bore section during, the downward stroke by means of travel·· and foree-controlled expansion, Paring the upward stroke, the expansion of the cutting group then retracts fron; the end of the third bore section such that the desired, programmed, bottle-shaped cylinder is generated. For ibis purpose, fig. § shows, by way of example, a schematic diagram which shows the dependency of the axial stroke position IIP (solid line) and of the radial expansion position \P ,f oo< I ln"t X nn,t >v-> m >< mum 't ' < tb ' bohle h m so, < sut« an a t ' It ,o>>

OtfS's knnuht t> is d tb' vd'W, Ki c, no, o; b be med to p x , 'g o ; .,1 <, > bottle-shaped bores, but can afford considerable advantages, even without modification, during the ; t'ot'Ό <, mt n, a o fhu,m tts ; or οχ, topic omen <"t t la ooi v m double expansion and a single culling group ring In art identical or simitar manner to the exemplary embodiment: of fig. .1 for producing a free shape with a noncircular bore cross section on a hors. This is customarily referred to as shape boning. For example, a boa·: scctii>n with a clover leal shape or elliptical atxspe vf the cross scvnon <an be p»>\tueed vsth the ml ot the .annular toN For das purpm,, the homny n>Uvh-oe has. te base the pcwd'ltr·;» »'* .nntuhaneeusF ,"mtothm', dx' fust snfeeo emeu and the second Infeed system, wherein, depending in each ease on the stroke position and angular position of the cutting group with respect to the bore, the expansions heve to he controlled with &amp; dfrtetmg tooe poshton such due da- free ahap< eon atsse IWÜ6] ft is also possible to Use tut aorsdldr fool to produee and/or to machine a bore shape which has a ifnstoeooscai bore section (çonical section) which merges relatively abruptly or with a .transition radius into an adjacent cylindrical bore section whim«;, the connect ion of a further bore section. As a result, SC’ example, a hose e,m Or ['i\'o.>\4 un", t femet xnapv winch Fv sn mum-χ de, csSuxhnxU tust bote section with a. first diao-eter, which iues’eases conically In an adjacent,, second bore section toward the bore base as far as a maximum: diatneier, The diameter difference between the cylindrical ihst bore -, t o' a K x s ' ' mu vtr m ο uuo'> w<. « bo , w,t '« , " ' ' ,\rnu -, x ne< ' approx, 20 pm and approx. 90 pm, The axial lengtb of the cylindrical first hose section can he, for example, between 29% and 89% of the étidre bore length, pW?l ä »at ,- unm, n " ροχχ 0,»'m m »»..ice a % -el al'tp.'d hot? »ecoon nr » now, » e i bulge ' a' otherwise largely eylbtdrieal bore, with the aid of an annular tool. The bulge can be approximately centrally or else in the vicinity of one of the boro ends.

When an annular tool Is used, it Is also possible relatively cost-effectively to machine a , χ nous las ' í ' >·, nam-'wcKX w nt, e'ts'n n kx »ox d>\s ,,i , o,1 > î \ s \u>" o ' x lower dead censor there u< > txn , ,, » xn'ds m nwr ,< » < i,xt»t no, s< tuv of highest piston speed. This variant is referred to here as :'strip horn»«'’ A conventional snethod suitable for this purpose and a correspondingly adapted honing tool arc described, fos example, m ,>, »x s ah'1 t ? 1' xidaxas is 'muss, 'xUnnsne o'Xvh taxhx»," th' on sr, on, kmpih e he I >n t '<xh w m >>e" < n"'x,xk shoo, v, he no’ ' ' whfnswMAi seWa, » ev 'tlx t d ni short hosting sticks, wherein this honing snaehming covers only the region of the upper dead center und/or of the lower dead center, |tWh When an asmoke tool wxh deub'e espansOX am cac awn b oiiwt ». as-ng g'onpx w used is I for example, fig. 4>, corresponding surface suaehupngs are likewise possible. For example, with the first annular cutting group, long-stroke macltiuis'sg of the entire bore length ean be carried not before then. for example, with tbc second cutting grtiup, Uhort’-sPokc machining is carried out in the region of the upper dead center 1rs order to produce a specific structure in the region of the upper dead center, |009dj 1st the event of corresponding variable control of the ratio between stroke frequency and etn >m=d hegt V w »1* e w < » aw di ' ' <x ' χ ' t » "ibi ' n t x "ο o ' » no t'w ' me ho cm has ssxdt strip honing can be carried out v. his different Txnmg angles m different nxial bore section? (eg, - for example, fig, 4 from DE Id 2dd? Ö32 370 A1 ).

Claims (5)

1. thmni V vhsoav s\ femotn szerszám Szabadalmi igénypontod f, tenoiass eljâtB égy test bélsô feiülétének megrnnakáiásárs egy nrnstkadätabban. légaiább egy hoooissi művelet ségltségéve·, főként beűgeteztőfelltfetek Ifenofessra .Itettgerbitskkök -vggy bengerperseiyék diM!Űlű$á»ái. dag erra·. ç.e;\ I VO\bà, ahol egy hőtmlásl művelet során egy feitágűhatö honoló szerszámot egy siternálő .mozgás létrithozásához a .ferai axlűlís kányában lei és le mozgalmik és egyidejűleg az alternáló mozgási szaperponáló fingó mozgás létrehozáséhoz forgattok, sírni egy a körhenger sikktől elférő feratsiakot hornttk léke, hogy égy psiaek alak» ferstet hoznirk léke, amely egy ferattfemenetkez esstlakezvs egy első ítsríaxzsksssztd reodeSkezík egy első átmérővel, 3 thríahemeoeftol távolabb égj második foratszakasszal remfetezib egy második átmózávek amely nagyobb, mist az oké átmérő, és az első és a otásodlk feratszs.ksöz között egy átmeneti szakasszal rendelkezik egy folyamatos áönesedékaz elsőről a második átmérőre, és ahol legalább egy hőnolási művelet sorú» egy gyűrűs szerszámot (200, 300, 40Ö) alkalmazunk, amely legalább agy gyűrő alaké vágóesoportnd (220, S2ö< 420) rendelkezik hamm vsgy több, egy szerszámlesi kerülete körül elosztöit, fegásvékdnél radiális iránya ekelődás tévén radiálisán slötolhato végóanyag-testtel, amelyek kerületi leányban széles és aslélls irányban keskeny trónoló szegmensekként vannak kiképezve, ahol a. iiőnöió szegmensek azlális Irányban, mért axlális hossza kisebb, mini a kezelek irányban méri szélesség és a vágóanyág-testekkel felszerelt vágási tarknnáay axíális hossza kisebb, mini a hónoló szerszám Innásos külső ázméröje. X Az I, igénypont szerinti hőnolási eljárás, azzal jellemezve, bogy először egy kötbengeres ftímtálakkal rendelkezi! furatét hozunk léire és ezt követően egy psktekhőnöió műveletbe» axiális&amp;n változó honoló lensnsrkákte. nonolássai egy palack alaké lisrasslakot alakítónk ki, 3, A 2. Igénypont szerimi hőnolási eljárás, azzal jellemezve, hogy a palaekhőooló művelet, során egy fékágíthatö fejnoih szerszámot atehnnruok legalább egy gyűrő alaké vágőcsoperttal, ahol &amp; vágbesopori hónok! szegmenseit egy jobbé tartó lökéinél a pai&amp;okídaknísk omgfeidíően a iöknthelyzsttöi függően radiálisán elötolink, míg egy tejfelé tarló löketűéi a paiaekaisknab megfelelően a lökeíhelyzcltöl tilggöen radiálisán visszaimzzok, d. A 2, igénypont szerinti hónokkal eljárás, aszal jellemezve, hogy a paiaekhónolő művelet során egy hónok! karokkal ellátott feltághbaló ifenolö szerszámot alkalmazunk, amely béneló kanak hossza a ikrát hosszának több, néni 5ö teát teszi ki, ahol egy első lázisban a hónoló szerszámot agy első lokethelyzatben egy felső és egy alsó aanyváitő pont között fel és le mozgatlak, majd egy második fezlsban a felső trányváltő pontot növekvően ätz alsó írényváhö pont kányában változtattok, ítgy hogy g löketheiyzet eltolódjest egy második löketheiyzet hányába á második Ibtátszakasz lartonnsnyábaa, és azután egy harmadik fázisban g hónok! szerszámot g mtsoOm es,eth< ' r, vet < e- t ης,ζ,η ok s s< X!<.g'<t unt b,00 < ! ,1 <i í, a< ' 1 pdlemr/se on ' 1 id n< o r mt „!. n„n e \ w tx\>«i mosrnen ln ttn\'?>, , femûmh s taQ'O? varmenet m mnám ho «me 5 -an t.t "onehM művelet során egy legalább egy gyűrű alaké vágőcsoporttai felszereli feliágtíható hőrtoiő szerszámot atetmaomk -tbol eiöoteen a ,mnűv tmnolast nmsrlvt során a sáyOarn-m-testeset nihmdó rlótotó emse a ham belső felületéhez szór kink. S, Hörtoió szerszám, Sként az elôzo igénypontok bármelyike szerinti Itóüsdásí eljárás megvalósításához, egy szérszábtíésttél (21Ö, 310, 410), amely «gy szemzámtebgélyí határoz meg, legalább egy, a szeiyzámtestm felszerelt. vágőanyag-testekkel rendelkező vágóesírporttai (220, 32(1, 420} egy furat belső felületének smyaglemtmkäiö megrmmkálásához és egy a végócsopotlSioz hozzárendelt vágóé s<?pmtmlötoló renílszérml egy a vágóoseport vágóattyag-fesfeire a szsmzámtengelyisez képest: radiálisán bald elötolö orö gyakorlásához, azxsl jefetezvo, hogy a hő«o.|ő szerszám (200, 3ö0, 400) gyiirós- szerszámkést va» klalakttvo és legalább egy gyér« akrk« vágóesoporttál (220, 32-0, 420) rtmóelkezík háropr vagy több, a szerszmrítest: kerülete körül stoszfem, « r> marnád tv >bs , g\ " önm o v'toksm r--M \, ' =. 'même \m<\ u v « 2ű 5. .<,?«' ' '0 " .andjet, kuniét s irányban s«les es tvuti:,, trá-ídmn keskeny mmok’ s-zegnx nyekkeni vannak lukepezu., ahol a hőnoló szegmensek-axlálb háűybao ínért áslális kosszá (feHS) kisebb, mint a kerületi .irányban mért szélesség és &amp; vágóanyag-testekkel felszerelt vágási tartomány axiáiis hossza kisebb, mim a honoló szerszám itatásos kúisö átmérője.
2. 7. A ö, igénypont szerimi hóttóló szerszám, ózzál jellemezve, hogy a hóooíó szegmensek aziátis hossza a hónoló szerszám hatásos külső átmérőjének kevesebb, mint 30 %*áí teszi ki, tekém ezen külső átmérő 10 %-a és 20 %-a közötti értéket, éstvagy a hőnoks szegmensek axiális hossza az S mm-iőt 20 mm-ig terjedő tartományba ésik éSivagy a honoló szegmensek axíáiis hosszat a höttolstidö ttnat feimá-osszának kevesebb, mint 10 %-át teszi ki,
3. 8- A ó. vagy 7. igénypont szerinti hónoló szerszám, azzsl jellemezve, hogy egy gyűrű alakú vágóosoport (220, 220, 420) kerületének több, mini a léin, főként ezen kerület több, mint 20 34-a vágóanyag-festekkei van felszerelve;· 0. ü <''S .gens pontok há«»'t»\,>ke s.otrOi mmo'o -mmra«' azzal jellemezve, hogy egy· vágóosoport báron« négy, öt vagy bat honoló szegmensből áll.
4. 10. A ó-9. igénypontok bármelyike szerinti hőnolő szerszám, azzal jellemezve, hogy a vágócsoporí (220,:320, 420) oly módon van a szerszámtest egy orsótól távolabbi végének köze lében. elrendezve, hogy a vágóosoport kizárólag a szerszámtest orsótól távolabbi leiében helyezkedjen el. IL A ő- Hl, igénypontok bármelyike szerinti honoló szerszám, azzal jelkmmzve, hogy a gyűrűs szerszám (200, 300} egyetlen gyíhü alakú vágócsoporttal (220, 320) rendelkezik, amely előnyöset! a szsrszatntos; (210, 310) szabad végén van elrendezve. 12. .A 6-ti. igénypontok bármelyike szerinti honoló szerszám. azzal jellemezve, hogy egy gyár« alakú vágócsoport (320) hónoló szegmensek (320-1, 320-2} ké* egyórástól fUggetleolb zlötolbató csoportjával rendelkezik, ahol a csoportok hónolö szegmensei kerületi irányban váltakozva -vasnak elrendezve, 13, A 6~ 10. Igénypontok hátroelytke szerinti hónom szerszám, azzal jellemezve, hogy -a gyhrtls szerszám (400) egy efső gyár« alakú vágócsoporttal (420-1) és legalább egy második gyűrű alakú vágócsoporttal (420-2) rendelkezik, amely az első gyűrű alakú vágóesopmtboz. képest nxiálisast eítoltan van elrendezve és az első gyár« alakú vágócsöportsól függsíiónül elötólható, áltól s gyűrűs szerszám előnyösen pontosan két: gyűrű alakú vágöosoporstál rendelkezik.
5. 14- A ó-13. Igénypontok bármelyike szerinti honoló szerszám, azzal jélUmtezve, bogy a honoló szerszámon egy aunctó "smöí.rnlsím <g) seg\ több d zeke, « - « obemleme dmi < óm, own a s'om«'cdo’ honom szségméssek köaött a szersaámfesten tenáré égy pneumatikus' átaét^mérömntou· sswóíhvökái {440} vans?ak feisémiivé; tx A ó-?4, ígéuypomok bárax-iyike s^arinU bôsx-k'ï szerszám. sresi jeltemexve, hogy a szersa&amp;mtesten egy szervesen beégheti, löbbseogeíyhen s^seisgaiiisí-ó csukiö, hikésk egy gömbösükió (350) vas? eketxiezsw.