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구 매 규 격 서
<table class="doc-table"><tr><td>품명(Description): 우주항공용 특수마찰용접 시스템 (Special Friction Welding System for Aerospace Applications)</td><td></td><td></td><td></td><td></td></tr><tr><td>구 매 규 격 서 [ COMMODITY DESCRIPTION ]</td><td></td><td></td><td></td><td></td></tr><tr><td>품목번호 Item No.</td><td>관세분류번호 HSK No.</td><td>정부물품분류번호</td><td>수량 Q&#x27;ty</td><td>단위 Unit</td></tr><tr><td>1</td><td>8468.80.0000</td><td>2327148501</td><td>1</td><td>SET</td></tr><tr><td>Ⅰ. End-user&#x27;s Use 1. Welding and joining of aerospace metallic materials using Linear Friction Welding (LFW) technology - Joining of aerospace-grade metallic materials such as Ti, Ni, Fe, and Al alloys through solid-state welding using frictional heat generated by linear oscillation and axial compressive force - Application of reciprocating linear motion to one component while maintaining the other component in a fixed position under controlled pressure conditions (e.g., amplitude of 4.0 mm and frequency of 60 Hz) - Production of high-integrity welded structures with minimized thermal distortion and reduced metallurgical defects compared to conventional fusion welding processes</td><td></td><td></td><td></td><td></td></tr></table>
2. Evaluation of welding characteristics and optimization of process parameters
- Investigation of the effects of welding parameters such as oscillation amplitude, frequency, forge force, and upset displacement on joint properties
and weld quality
- Testing and evaluation of mechanical properties, microstructure evolution, and heat-affected zone (HAZ) characteristics according to welding conditions
- Production of welded specimens for tensile, fatigue, creep, and fracture evaluation of aerospace structural materials
3. Demonstration and validation of large-scale aerospace component joining
- Experimental joining of large-area components within a forge stroke range of up to 50 mm and welding area up to approximately 2,000 ㎟
- Application to non-rotational and complex-shaped aerospace components such as shafts, tubes, blades, and structural parts
- Verification of process repeatability and precision through integrated feedback control systems for position, force, and oscillation monitoring
4. Research and development of advanced solid-state joining processes
- Development of optimized LFW process conditions for high-performance aerospace alloys and dissimilar material combinations
- Reproduction and analysis of thermomechanical deformation behavior and flash formation during the welding process
- Research on improving structural reliability, minimizing residual stress, and enhancing bonding integrity for aerospace applications
Ⅱ. Configurations of Goods
1. Main machine (주장비)
1.1 Linear Friction Welding (LFW) Main System
• Aerospace-grade linear friction welding machine for solid-state joining of metallic materials
• Chordal/linear oscillation type welding system with servo-hydraulic oscillator
• Vertical oscillation configuration and horizontal forge axis structure
• Capable of welding Ti, Ni, Fe, and Al alloys for aerospace applications
1.2 Forge System
• Hydraulic forge actuator system
• Fine-stage and gross-stage forge assembly for precise axial load control
• Hydraulic servo-controlled forge slide with upset displacement control
• High rigidity machine frame for accurate weld positioning and repeatability
1.3 Oscillation System
• Oscillator slide and oscillator cylinder system
• High-frequency reciprocating oscillation control
• Adaptive amplitude and phase control system for stable welding motion
• Oscillation motion feedback and closed-loop control system
1.4 Machine Frame and Isolation System
• Heavy-duty fabricated steel frame structure
• Integrated vibration isolation system for minimizing dynamic load transmission
• Ergonomic floor-mounted structure without machine pit requirement
1.5 Hydraulic Power Unit (HPU)
• Servo-hydraulic power supply system with accumulator modules
• Independent forge, oscillation, and conditioning hydraulic circuits
• Oil cooling and temperature stabilization system integrated with chiller
1.6 Control and Monitoring System
• Integrated machine control and data acquisition system
• Human-Machine Interface (HMI)
• Real-time monitoring of welding parameters including force, displacement, frequency, and amplitude
• Weld recipe generation, process monitoring, and automatic report generation functions
2. Auxiliary Equipment (보조장비)
2.1 Standard Coupon Tooling System
• Standard tooling and adaptors for small and large coupons
• Hydraulic clamping system for specimen fixation
• Replaceable inserts for various specimen geometries
2.2 Safety System
• Safety fences and interlocked access doors
• Machine guarding compliant with industrial safety standards
2.3 Cooling and Utility System
• Chiller system for hydraulic oil cooling and thermal stabilization
• Cooling water circulation and filtration system
2.4 Data Acquisition and Sensor System
• Pressure, displacement, acceleration, and position sensors
• Redundant transducers for process reliability and calibration verification
• Real-time process data acquisition system
2.5 Operator Station
• Integrated control cabinet and operator console
• Weld parameter programming and process analysis interface
• Manual and automatic operation modes
2.6 Installation and Training Package
• Factory acceptance test (FAT) and site acceptance test (SAT) support
• On-site installation, commissioning, and operator training services
Ⅲ. Performance &amp; Specification
주장비
1. Specifications:
1.1 Welding Capability
• Applicable Material : Ti, Ni, Fe, Al alloy
• Maximum Weld Area : ≥ 2,500 mm²
• Welding Type : Solid-state Linear Friction Welding
1.2 Oscillation System
• Oscillation Direction : Chordal
• Maximum Amplitude : ≥ 4.0 mm
• Frequency Range : up to 60 Hz
• Amplitude Accuracy : ±2%
• End Position Accuracy : ±0.1 mm
• Frequency Accuracy : ±1%
1.3 Forge System
• Maximum Forge Force : ≥ 170 kN
• Minimum Forge Force : ≤ 30 kN
• Maximum Upset : ≥ 10 mm
• Forge total Stroke : ≥ 300 mm
• Force Accuracy : ±2%
1.4 Positioning Accuracy
• End Position Accuracy : ≤ 0.1 mm
• Guidance Straightness : High precision
1.5 Control &amp; Data Acquisition
• Real-time Data Acquisition
• Weld Recipe Management
• Automatic Weld Report
Ⅳ. 기타 조건(Remarks)
1. An engineer from the product supplier shall visit the site and provide installation and training services.
제품 공급사 엔지니어가 현장 방문하여 설치 및 교육 서비스 제공.
2. The online system manual and sensor-related calibration sheets shall be provided in a digital storage medium.
온라인(On-line) 시스템 매뉴얼과 센서 관련 Calibration Sheet를 디지털 저장매체에 저장하여 제공한다.
3. Warranty period: The supplier shall provide a warranty for normal equipment operation, parts, and technical support for one year after final acceptance
inspection of the equipment.
무상보증기간: 장비 최종 검수 후 1년간 정상적인 장비 작동에 대한 보증 및 부품 및 기술지원.
4. The equipment supplier shall submit a detailed quotation, official specifications, schematic drawings, or other explanatory materials including the
contents of the specification document, and the submitted documents shall clearly allow verification of compliance with the bidding specifications and
requirements.
장비 공급자는 규격서의 내용을 포함한 상세한 견적 및 공식 사양서, 개략도 혹은 기타 설명 자료 등을 제출해야만 하며, 명확하게 입찰 규격서와 사양을 확인
할 수 있어야 한다.
5. Installation and commissioning test of equipment must be completed by 15/11/2027.
장비의 설치 및 시운전 시험은 2027년 11월 15일까지 완료되어야 합니다.

참가신청	2026-10-13 10:00 ~	투찰마감	2026-11-03 10:00
개찰	2026-11-03 11:00
낙찰방법	협상에의한계약-협상에 의한 낙찰자 결정
자격조건 및 특이사항	참가가능지역 전국 · 공동도급 공동수급불허
유의	⛔ 취소공고