Claims
- 1. A method for making an assembly of mated parts comprising the steps of:
- forming a first part with a mating surface and at least one protrusion extending from the mating surface, said protrusion formed with a head joined to said mating surface by a narrowed neck portion;
- subsequent to the forming of said first part, forming a second part in place with said first part such that the material of said second part envelops said protrusion, captures said head, and mated precisely with the mating surface of said first part; and
- forcibly separating said first and second parts until said narrowed neck portion of said protrusion breaks.
- 2. A method for making an assembly of mated parts comprising the steps of:
- forming a first part with a mating surface and at least one protrusion extending from the mating surface;
- subsequent to the forming of said first part, forming a second part in place with said first part such that the material of said second part envelops said protrusion and mates precisely with the mating surface of said first part; and
- forming coaligned bores through said first and second parts for the insertion of fasteners for holding said first and second parts in assembled relationship.
- 3. A method for making an assembly of first and second mated parts comprising the steps of:
- providing a first forming cavity having a shape corresponding to the shape of a first part;
- providing a second forming cavity having a shape corresponding to the shape of said assembly of first and second mated parts;
- forming the first part in said first cavity such that the first part is formed with at least one protrusion extending integrally outwardly from a mating surface of said first part, said step of forming the first part including forming a head joined to the mating surface by a narrowed neck;
- transferring the first part thus formed from said first cavity to said second cavity thereby leaving a portion of said second cavity unoccupied by said first part;
- forming the second part in place in said unoccupied portion of said second cavity such that said second part mated precisely with said first part an such that the material of said second part envelops said protrusion of said first part and such that said material of said second part interlocks with said head; and
- forcing said first and second parts apart from each other and breaking said head from said protrusion at said neck.
- 4. A method for making an assembly of first and second mated parts comprising the steps of:
- providing a first forming cavity having a shape corresponding to the shape of the first part;
- providing a second forming cavity having a shape corresponding to the shape of said assembly of first and second mated parts;
- forming the first part in said first cavity such that the first part is formed with at least one protrusion extending integrally outwardly from a mating surface of the first part;
- transferring the first part thus formed from said first cavity to said second cavity thereby leaving a portion of said second cavity unoccupied by said first part;
- forming the second part in place in said unoccupied portion of said second cavity such that said second part mates precisely with said first part and such that the material of said second part envelops said protrusion of said first part, said step of forming the second part including forming another of said first parts in said first cavity; and
- forcing said first and second parts apart from each other.
- 5. A method for making an assembly of first and second mated parts comprising the steps of:
- providing a first forming cavity having a shape corresponding to the shape of the first part;
- providing a second forming cavity having a shape corresponding to the shape of said assembly of first and second mated parts;
- forming the first part in said first cavity such that the first part is formed with at least one protrusion extending integrally outwardly from a mating surface of the first part;
- transferring the first part thus formed from said first cavity to said second cavity thereby leaving a portion of said second cavity unoccupied by the first part;
- forming the second part in place in said unoccupied portion of said second cavity such that the second part mates precisely with the first part and such that the material of the second part envelops said protrusion of said first part, each of said steps of forming including forming bores in the first and second parts for the insertion of fasteners; and
- forcing said first and second parts apart from each other.
Parent Case Info
This is a division of application Ser. No. 07/994,272, filed Dec. 21, 1992 (now U.S. Pat. No. 5,387,472), which is a continuation-in-part of application Ser. No. 07/886,694 filed May 20, 1992 (now U.S. Pat. No. 5,313,703).
US Referenced Citations (26)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0167320 |
Jan 1986 |
EPX |
3423306 |
Jan 1986 |
DEX |
0005071 |
Jan 1977 |
JPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
994272 |
Dec 1992 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
886694 |
May 1992 |
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