DE2326408A1 - METHOD AND DEVICE FOR DEBURRING CHANNEL EDGES IN COATED CYLINDER HOLES - Google Patents

Description

ZtJlTOJLPP = WBHEB GlBH Munich »16o5o1973

PAiC = Sf / Η® 8000 Mün cjign ^ JK)

Method iind device zuzotEntgraiKri ^ J of Channel edges in coated cylinder bores

The invention "relates to a method and an apparatus gur integrated iron edges in. bsseheten cylinder · = "bokrungen ^ preferably of internal combustion engines or

The deburring of channel edges in the cylinder "boiining @ n" has so far been done almost exclusively by hand. The Hsgel was this work gas gate of the coating carried out with chrome © the Hieaeil or other materials ο The fluctuations and scattering in the edge diameter and in the accuracy of the control edge height were particularly negative in function and in long-running internal combustion engines Performance of these machines _o Because of the inefficiency and inaccuracy of this process, electrochemical attempts were also made _{ΰ Deburr} the edges on the base material _{o However,} these attempts were unsatisfactory in each case; when it was recognized that cast aluminum, as the material of the cylinder, is only poorly suited for electrochemical machining and that solerance and shape deviations would have to be accepted with the prescribed dimensions. not to bring genauiüfceit and the required high engine outputs bsi engine in accordance Sindo addition must coating after the subsequent electroplating Be = weraen and the subsequent honing still expected sharp and burred transitions to the channel edges <>

409850 / 0S22 - 2 - -

The object of the invention is to deburr _s channel edges in beschicktet en cylinder bores with great uniformity ,, high hatred and shape accuracy and in particular good efficiency without the usual Torarbeiten the base material performed au have _β According to the invention this is achieved in that the channel edge NaOH en coating the invention will be deburred from chromium, Nicasil oa "by a lormelektrode in electrochemical taking down _o provides, in particular, that the cylinder bore after the Peinbohren coated and the ICanalkantea is then pre-honed to a certain extent _f then trimmed with a Pormelektrode and Gleitsohrägen- be attached and Finally, the cylinder bore is gahonted. The electro-chemical removal of the shape electrode is preferably carried out by machine, which is why the devices for carrying out the charge according to the invention are also the subject matter of this invention

By vorbesehriebene simple method for deburring the Eanalkanten of Eylinäerbohmangen are the aforementioned laughs hasten the vorbekamitsn working practices and procedures are all resolved "The new process aeichnet look through © ine great economy and thus of _P that it maamehr offers the possibility ^ channel Canton coarse lorm = To deburr the dimensional accuracy, which largely excludes the loss of performance on the machines, particularly in the case of burning machines, premature wear of the moving parts.

All the details explained in the description are important for the invention.

409850/0522

Claims (1)

ZBOTAPP-WEBEE (MBH _n lünchen ,, 16o5o1973 Munich - 80 Anginger Strasse 1-3 atentans' ρ backwards Process for the burring of Kaaalkanten in coated cylinder boresc, in particular by Brensate & ftmasehiaea ■ and other units Bn ₉ thereby gektnageichaetp that the Eaaalkaatea after the BeseMehtiaag ams GhX ³ Qm ₅ licasil 0 ₀ a _o through a form electrode in the el © ktro = »ch @ misch © a removal · = procedure © atgratet werdeao ο method aaeh claim 1 _p This is characterized by the fact that the cylinder base is coated after fine boring and then pre-honed to a certain size ₉ The channel edges are then deburred with a shaped electrode and inclined and then the cylinder bore is honed to the final dimension ο Device for carrying out the method for electrical = ' chemical deburring of zanal edges in coated Cylinder bores o 409850/05