CN105666894A - Adjusting method for domestic foam machining allowance of helicopter main blade - Google Patents

Adjusting method for domestic foam machining allowance of helicopter main blade Download PDF

Info

Publication number
CN105666894A
CN105666894A CN201610130627.8A CN201610130627A CN105666894A CN 105666894 A CN105666894 A CN 105666894A CN 201610130627 A CN201610130627 A CN 201610130627A CN 105666894 A CN105666894 A CN 105666894A
Authority
CN
China
Prior art keywords
domestic
density
polyurethane
machining allowance
main blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610130627.8A
Other languages
Chinese (zh)
Inventor
刘政
张元瑞
杨库
李成
姜志金
王雪松
胡伟
于馨皓
聂宏昱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Aircraft Industry Group Co Ltd
Original Assignee
Harbin Aircraft Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin Aircraft Industry Group Co Ltd filed Critical Harbin Aircraft Industry Group Co Ltd
Priority to CN201610130627.8A priority Critical patent/CN105666894A/en
Publication of CN105666894A publication Critical patent/CN105666894A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention provides an adjusting method for the domestic foam machining allowance of a helicopter main blade. The requirement that in the mould pressing process of a helicopter-9 helicopter main blade, domestic foam can provide enough back pressure is met. According to the technical scheme, the method comprises the steps that firstly, if factory-entering re-inspection density value of domestic polyurethane filling foam with the density being 50 kg/m<3> is larger than 54 kg/m<3>, the machining allowance of the polyurethane filling foam is 0.9 mm; and b, if factory-entering re-inspection density value of the domestic polyurethane filling foam with the density being 50 kg/m<3> is smaller than or equal to 54 kg/m<3>, the machining allowance of the polyurethane filling foam is 1.2 mm.

Description

Go straight up to the domestic Foam machining surplus inflation method of owner's blade
Technical field
The invention belongs to and go straight up to owner's blade, it relates to go straight up to the domestic Foam machining surplus inflation method of owner's blade.
Background technology
Going straight up to owner's blade main purposes of foam-filled material is to ensure that the crucial composite material parts of the main blades such as covering, crossbeam, stiffener can apply the molding pressure of enough about 0.8bar in mold process. For 50kg/m3 density filled and process, filled and process process redundancy adjustment amount more common at present is 0.6mm, but the filled and process for different densities fluctuation has different effects, and main blade mold pressing quality is had a great impact by fixing process redundancy.
Summary of the invention
The object of the present invention: proposing one and go straight up to the domestic Foam machining surplus inflation method of owner's blade, meet straight nine and go straight up to owner's blade in mold process, domestic foam can provide enough counterpressures.
The technical scheme of the present invention: one goes straight up to the domestic Foam machining surplus inflation method of owner's blade, comprising:
If a () domestic density is 50kg/m3Polyurethane-type filled and process enter factory review density value be greater than 54kg/m3, the process redundancy of polyurethane-type filled and process is 0.9mm;
If b polyurethane-type filled and process that () domestic density is 50kg/m3 enters factory, reinspection density value is less than or equal to 54kg/m3, the process redundancy of polyurethane-type filled and process is 1.2mm.
The advantage of the present invention: the processing carrying out going straight up to the domestic filled and process of owner's blade according to the present invention, after main blade mold pressing, main paddle molding performance is good, surperficial disposable qualification rate height.
Embodiment:
According to the characteristic of domestic main blade filled and process, ensureing under the prerequisite neither destroying filled and process, enough mold pressing counterpressures needed for main blade can be provided again, it is the density fluctuation situation (density fluctuation of permission is 50～57kg/m3) of the filled and process of 50kg/m3 for domestic foam density, has worked out following process redundancy regulation:
If a () domestic density is 50kg/m3Polyurethane-type filled and process enter factory review density value be greater than 54kg/m3, the process redundancy of polyurethane-type filled and process is 0.9mm;
If b polyurethane-type filled and process that () domestic density is 50kg/m3 enters factory, reinspection density value is less than or equal to 54kg/m3, the process redundancy of polyurethane-type filled and process is 1.2mm.

Claims (1)

1. go straight up to the domestic Foam machining surplus inflation method of owner's blade for one kind, it is characterised in that, comprising:
If a () domestic density is 50kg/m3Polyurethane-type filled and process enter factory review density value be greater than 54kg/m3, the process redundancy of polyurethane-type filled and process is 0.9mm;
If b polyurethane-type filled and process that () domestic density is 50kg/m3 enters factory, reinspection density value is less than or equal to 54kg/m3, the process redundancy of polyurethane-type filled and process is 1.2mm.
CN201610130627.8A 2016-03-08 2016-03-08 Adjusting method for domestic foam machining allowance of helicopter main blade Pending CN105666894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610130627.8A CN105666894A (en) 2016-03-08 2016-03-08 Adjusting method for domestic foam machining allowance of helicopter main blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610130627.8A CN105666894A (en) 2016-03-08 2016-03-08 Adjusting method for domestic foam machining allowance of helicopter main blade

Publications (1)

Publication Number Publication Date
CN105666894A true CN105666894A (en) 2016-06-15

Family

ID=56307025

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610130627.8A Pending CN105666894A (en) 2016-03-08 2016-03-08 Adjusting method for domestic foam machining allowance of helicopter main blade

Country Status (1)

Country Link
CN (1) CN105666894A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108688193A (en) * 2017-04-12 2018-10-23 中国商用飞机有限责任公司 The dimension shape method and its semi-finished product of structural foam, the method for mechanical processing and its structural foam forming part

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103342167A (en) * 2013-05-18 2013-10-09 大连理工大学 Method for making scaled composite material wing model

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103342167A (en) * 2013-05-18 2013-10-09 大连理工大学 Method for making scaled composite material wing model

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
韩志仁等: "《飞机制造技术基础——机械加工》", 28 February 2015, 北京航天航空大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108688193A (en) * 2017-04-12 2018-10-23 中国商用飞机有限责任公司 The dimension shape method and its semi-finished product of structural foam, the method for mechanical processing and its structural foam forming part
CN108688193B (en) * 2017-04-12 2021-08-31 中国商用飞机有限责任公司 Method for dimensional forming of structural foam material and method for machining

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160615

WD01 Invention patent application deemed withdrawn after publication