Method for producing rotationally symetrical, non cylindrical bores using a honing tool
AssigneeGehring Technologies GmbH + Co. KG
InventorsAndreas Wagner, Andreas Wiens, Niko Schamne, Manuel Waiblinger
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Abstract
A method and suitable honing tools for honing conical bores are proposed.
Claims15
Method for making a cylindrical bore into a conical bore using a honing tool, wherein the honing tool comprises honing stones, the length of which is less than half the length of the bore to be processed, comprising the steps of:
- applying the honing stones of the honing tool to the bore,
- honing the bore over its entire length with a maximum stroke (HMax=OP1−UP),
- honing the bore with decreasing stroke, wherein a lower reversal point of the honing tool remains substantially unchanged, until one of a predefined end value for the upper reversal point is reached or a number of strokes with decreasing stroke is reached.
Method for making a bore into a conical bore using a precision boring tool, characterized in that at least one cutting edge of the precision boring tool is fed according to the position thereof in the bore to be processed.
Method for making a cylindrical bore into a conical bore, wherein the parameters of the bore which are relevant to honing, in particular the hardness of said bore, are the same, comprising the steps of:
- applying the honing stones of the honing tool to the bore,
- honing the bore over its entire length at a constant contact force of the honing stones against the bore,
- honing the bore, wherein a feed force by means of which the honing stones are pressed against the bore is controlled according to a position of the honing tool in the bore.
Process chain for shaping bores, comprising the process steps specified in the columns of the table:
- Process step
- Process chain
- cylindrical honing
- X
- X
- X
- X
- conical precision boring
- X
- X
- conical honing with
- X
- X
- X
- X
- decreasing stroke
- conical honing with
- X
- X
- X
- X
- X
- X
- X
- dynamic feeding
- smoothing by
- X
- X
- X
- X
- X
- X
- X
- X
- spring force
Process chain for shaping cylindrical bores using at least two honing tools, comprising the steps of:
- pre-honing a bore,
- making the bore into a conical bore, comprising
- using a honing tool, wherein the honing tool comprises honing stones, the length of which is less than half the length of the bore to be processed, comprising the steps of:
- applying the honing stones of the honing tool to the bore,
- honing the bore over its entire length with a maximum stroke (HMax=OP1−UP),
- honing the bore with decreasing stroke, wherein a lower reversal point of the honing tool remains substantially unchanged, until one of a predefined end value for the upper reversal point is reached or a number of strokes with decreasing stroke is reached;
- finish honing the bore, and
- smoothing the bore.
Dependencies are inferred from the claim text.