Isostatic self-contained bond or mold tool

• US 4,855,011 A
• Filed: 12/12/1986
• Issued: 08/08/1989
• Est. Priority Date: 12/12/1986
• Status: Expired due to Fees

• Current Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: United Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Rutherford, Frank C., Legge, John R.
• Primary Examiner(s): BALL, MICHAEL W
• Assistant Examiner(s): Cuervo, Lori A.
• Application Number:
  US06/941,904
• Time in Patent Office: 970 Days
• Field of Search: 100/211, 100/93 P, 156/382, 156/583.1, 156/583.3, 425/405 H, 164/323, 219/243, 219/445, 219/457, 219/466
• US Class Current: 156/583.1
• CPC Class Codes: B29C 2035/0211 resistance heating B29C2035/0811 takes precedence
• CPC Class Codes: B29C 33/02 with incorporated heating or cooling means
• CPC Class Codes: B29C 43/12 using bags surrounding the moulding material or using membranes contacting the moulding material
• CPC Class Codes: B29C 43/32 Component parts, details or accessories; Auxiliary operations
• CPC Class Codes: B29C 43/52 Heating or cooling
• CPC Class Codes: B29C 70/46 using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• CPC Class Codes: B29K 2909/02 Ceramics
• CPC Class Codes: B29L 2031/3085 Wings
• CPC Class Codes: B30B 1/003 by an elastic bag or diaphragm expanded by fluid pressure
• CPC Class Codes: B30B 15/34 Heating or cooling presses or parts thereof

Abstract

An arrangement for manufacturing complex structures by transferring heat and pressure from ceramic molds to the article to be molded. The arrangement comprises a combination of ceramic molds, a flexible pressure bag means for applying pressure to at least one of the ceramic molds and a flexible pressure heating blanket means to apply pressure and heat against at least one of the ceramic molds.

Claims

1. An arrangement for manufacturing a composite article structure comprising:

(a) first and second cooperable forming means for establishing a complex form therebetween, said first and second cooperable forming means comprising ceramic;

(b) containment means for containing said first and second cooperable forming means;

(c) said first and second cooperable forming means defining respective first and second inner surfaces for applying pressure upon said complex structure to be made therebetween;

(d) at least one of said cooperable means containing a first controllable heating means for controllably applying heat to one of said inner surfaces including an arrangement of ducts spaced adjacent said inner surface for containing said heating means;

(e) a flexible pressure bag means for applying controllable pressure between said containment means and at least one of said cooperable forming means; and

(f) said arrangement further comprising a flexible pressure heating blanket means disposed adjacent said pressure bag means for applying controllable pressure and heat to at least one of said cooperable forming means;

whereby heat and pressure are transferable from said flexible pressure heating blanket means to said manufactured complex structure in order to accomplish molding or bonding.

2. The arrangement of claim 1, further characterized in that said first controllable heating means includes a plurality of heating wires.

3. The arrangement of claim 1, wherein said second cooperable forming means contains a second heating means for controllably applying heat to said second inner surface.

4. The arrangement of claim 1, wherein said second heating means is spaced adjacent said second inner surface.

5. The arrangement of claim 1, wherein said second cooperable forming means includes an arrangement of ducts adjacent said second inner surface for containing said heating means.

6. The arrangement of claim 1, wherein said second heating means includes a plurality of heating wires.

7. The arrangement of claim 1, wherein said first and second ceramic forming means are substantially nonporous.

8. The arrangement of claim 7, wherein said ceramic cooperable forming means is impregnated with glaze.

9. The arrangement of claim 3, wherein said first and second heating means comprise a plurality of wires spaced apart and transverse to each other.