Method for connecting a first component to a second component to form an assembly
A method for connecting a first component to a second component to form an assembly forms a press fit connection between the first component and the second component, for which purpose the second component is produced having an annular component section. A recess is formed, in which the first component is at least partially arranged. At least the annular component section of the second component is produced as a sintered component and has net shape or near net shape quality at least in the region of the recess.
1. A method for connecting a first component to a second component to form an assembly, comprising:
producing the first component as a shaft;
defining a diameter of a base circle of an external toothing;
shifting the diameter of the base circle of the external toothing by 55% to 90% of an average overlap in a direction of a gear center to form a shifted diameter of the base circle;
creating a pressing mold for producing a sintered gear with the shifted diameter of the base circle;
producing the second component as the sintered gear having an annular component section in which a recess is formed and for which the external toothing is formed on an outer lateral surface of the annular component section;
forming a press fit connection between the first component and the second component, wherein the first component is at least partially arranged in the recess;
wherein at least the annular component section of the second component has net shape or near net shape quality at least in a region of the recess;
wherein the base circle is a circle having a diameter at which tooth flanks of two contacting gears do not touch and no transmission of force takes place, and
wherein the average overlap is determined by the formula:
dw - d
where dw is a diameter of the shaft and d is an inner diameter of the second component.
2. The method according to claim 1 ,
wherein the annular component section is produced having a radial wall thickness W,
wherein the recess is produced having a circular cross-section and a recess inner diameter D,
wherein the radial wall thickness W is produced such that a ratio of W/D<1/2 is present.
3. The method according to claim 1 , wherein the annular component section is formed having a chamfer on a circumference of the recess at a transition between an inner lateral surface bounding the recess and an end face of the annular component section.
4. The method according to claim 3 , wherein the chamfer is formed with an angle to the inner lateral surface bounding the recess of the annular component section, which angle is selected from a range of 170° to 178° .
5. The method according to claim 1 , wherein the sintered gear is produced having pores with an average pore size in a range of 5 μm to 200 μm.
6. The method according to claim 2 , wherein the ratio of W/D is between 1/5 and 1/15.