Method for producing a flange blank and for producing a flange

Patent metadata

Field	Value
Publication number	US-11060641-B2
Application number	US-201615779899-A
Country	US
Kind code	B2
Filing date	Nov 30, 2016
Priority date	Dec 1, 2015
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

The invention relates to a method for producing a flange blank (1), comprising the following step: producing a base body (3), wherein the base body (3) comprises a fluid passage (5), a support section (7) having a first material thickness (M1) and a force-absorbing section (9) having a second material thickness (M2), the second material thickness (M2) is greater than the first material thickness (M1), and the force-absorbing section (9) is configured for the selective production of through-holes (15a-15h, 17a-17l) according to a first drilling pattern and/or a second drilling pattern. The invention further relates to a method for producing a flange (100). In addition, the invention relates to a flange blank (1).

First claim

The invention claimed is:

1. A method for producing a flange blank, comprising the following steps: producing a base body, wherein the base body comprises a fluid passage extending along a longitudinal axis, a support section having a first material thickness, a force-absorbing section having a second material thickness, the second material thickness being greater than the first material thickness, and through-holes, each of the through-holes extending entirely through the force-absorbing section and the support section of the base body; wherein the force-absorbing section is configured for the production of the through-holes selectively according to a first drilling pattern and a second drilling pattern, wherein the force-absorbing section in a plane orthogonal to the longitudinal axis has an outer contour which is configured to be rotationally symmetrical about the longitudinal axis and mirror-symmetrical with respect to a plane of symmetry through which runs the longitudinal axis, and providing the outer contour of the force-absorbing section with non-uniform rounded sections, wherein the rounded sections include one or more first rounded sections having a first radius and one or more second rounded sections having a second radius different than the first radius, wherein the first radius and the second radius are located radially outward of the through-holes of the first drilling pattern and/or the second drilling pattern, and wherein a position, arrangement and/or size of the individual radii is non-uniform with respect to the first drilling pattern and/or the second drilling pattern.

2. The method as claimed in claim 1 , wherein an outer contour of the support section defines an outer most contour of the flange blank and the outer contour of the support section is substantially circular.

3. The method as claimed in claim 1 , wherein the through-holes comprise an even number of through-holes.

4. The method as claimed in claim 1 , wherein the support section comprises two opposite notches that lie inside the plane of symmetry through which runs the longitudinal axis.

5. The method as claimed in claim 1 , wherein the step of producing a base body comprises one or both of the following steps:
producing a flange blank casting by a casting method;
reworking the flange blank casting by a machining method.

6. The method as claimed in claim 5 , wherein the flange blank casting is produced by using a two-part, casting mold.

7. A method for producing a flange, comprising the following steps:
producing a number of flange blanks by the method as claimed in claim 1 , and
selectively producing through-holes according to at least one of the first drilling pattern and/or the second drilling pattern in the force-absorbing section of the base body.

8. The method as claimed in claim 7 , wherein the step of selectively producing through-holes according to a first drilling pattern and/or a second drilling pattern in the force-absorbing section of the base body comprises one, several, or all of the following steps:
producing a first number of bores according to the first drilling pattern in the force-absorbing section of the base body;
producing bores in a first arrangement according to the first drilling pattern in the force-absorbing section of the base body;
producing a second number of bores according to the second drilling pattern in the force-absorbing section of the base body;
producing bores in a second arrangement according to the second drilling pattern in the force-absorbing section of the base body.

9. The method as claimed in claim 7 , wherein the step of selectively producing through-holes according to a first drilling pattern and/or a second drilling pattern in the force-absorbing section of the base body comprises one of the following steps:
selecting and using a first casting insert to produce through-holes according to the first drilling pattern;
selecting and using a second casting insert to produce through-holes according to the second drilling pattern;
selecting and using a third casting insert to produce through-holes according to the first and the second drilling pattern.

10. The method as claimed in one of claims 7 to 9 , further comprising
a plurality of identical flange blanks before through-holes according to the first drilling pattern are produced in the force-absorbing section of the base body of a first flange blank and through-holes according to the second drilling pattern are produced in the force-absorbing section of the base body of a second flange blank.

11. A flange blank for producing a flange, comprising a base body which comprises a fluid passage extending along a longitudinal axis, a support section having a first material thickness and a force-absorbing section having a second material thickness, and through-holes, each of the through-holes extending entirely through the force-absorbing section and the support section of the base body, wherein the second material thickness is greater than the first material thickness, wherein the force-absorbing section is configured for the production of the through-holes selectively according to a first drilling pattern and a second drilling pattern, wherein the force-absorbing section in a plane orthogonal to the longitudinal axis has an outer contour which is configured to be rotationally symmetrical about the longitudinal axis and mirror-symmetrical with respect to a plane of symmetry through which runs the longitudinal axis, wherein the outer contour of the force-absorbing section comprises non-uniform rounded sections, wherein the rounded sections include one or more first rounded sections having a first radius and one or more second rounded sections having a second radius different than the first radius, wherein the first radius and the second radius are located radially outward of the through-holes of the first drilling pattern and/or the second drilling pattern, and wherein a position, arrangement, and/or size of the individual radii is non-uniform with respect to the first drilling pattern and/or the second drilling pattern.

12. The flange blank as claimed in claim 11 , wherein the force-absorbing section is adapted to fully surround central axes of the through-holes of the first drilling pattern and second drilling pattern.

13. The flange blank as claimed in claim 12 , wherein one or more of the radii of the rounded sections each run coaxially to a central axis of the through-holes of the first drilling pattern or the second drilling pattern.

14. A method for producing a flange blank, comprising the following steps: producing a base body, wherein the base body comprises a fluid passage extending along a longitudinal axis, a support section having a first material thickness and a force-absorbing section having a second material thickness, the second material thickness being greater than the first material thickness, and through-holes, each of the through-holes extending entirely through the force-absorbing section and the support section of the base body; wherein the force-absorbing section is configured for the production of the through-holes selectively according to a first drilling pattern and a second drilling pattern, wherein the force-absorbing section in a plane orthogonal to the longitudinal axis has an outer contour which is configured to be rotationally symmetrical about the longitudinal axis or mirror-symmetrical with respect to a plane of symmetry through which runs the longitudinal axis, and providing the outer contour of the force-absorbing section with non-uniform rounded sections, wherein the rounded sections include one or more first rounded sections havi

Assignees

• Minimax Gmbh & Co Kg

Inventors

• Ende Ralf
• Stachowitz Frank
• Kempf Peter
• Pohl Matthias

Classifications

• B22D25/02

  by its peculiarity of shape; of works of art {(cylinders, pistons B22D15/02)} · CPC title

• F16L23/032 Primary

  characterised by the shape or composition of the flanges · CPC title

• B23B2215/72

  Tubes, pipes · CPC title

• B23B41/00

  Boring or drilling machines or devices specially adapted for particular work {(surgical drilling machines A61B17/16)}; Accessories specially adapted therefor · CPC title