Journal of the Technical University of Gabrovo Journal of the Technical University of Gabrovo
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DESIGN AND CONTROL OF PLASTIC BOTTLE BREAKING AND STORAGE MACHINE

  • TITLE: DESIGN AND CONTROL OF PLASTIC BOTTLE BREAKING AND STORAGE MACHINE
  • AUTHOR(S): S. ERSOY, E. AYGUL, E. TOPTAŞ
  • ABSTRACT: In this study we present a pet bottle shredder machine and mechatronic system used in machine. Plastic shredder is a machine used for cutting the plastic bottles in small pieces to make waste management easier. We are making this project for recycling of plastic bottle wastage in domestic area, industries etc. In this areas the plastic bottle waste is present in large quantity, but the availed machines used to recycle this waste, is not exist. Benefit of this machine is the recycle of the plastic bottles. In this machine, plastic bottles are detected with the pet sensor (Omron E3Z-B61-ECON (0.5M)) and shredded with shredder. This machine is controlled by Arduino Mega. The objects taken in the system are directed by Arduino. As a result of the separation process, the pet bottles sent to the crusher are divided into smaller pieces by means of an asynchronous motor and a crusher driven by an asynchronous motor. The result is a more efficient use of storage space. In this regard, the first steps of the recycling process, namely separation and crushing, will be done more effectively using the automation system than the conventional methods.

REGARDING THE POSSIBILITIES OF APPLYING THE METAL INJECTION MOULDING METHOD IN BIMETAL CUTTING TOOLS PRODUCTION

  • TITLE: REGARDING THE POSSIBILITIES OF APPLYING THE METAL INJECTION MOULDING METHOD IN BIMETAL CUTTING TOOLS PRODUCTION
  • AUTHOR(S): P. Trifonov, K. Anastasov, H. Hristov, I. Aleksandrova
  • ABSTRACT: In this article, the methods for manufacturing of bi-metal blanks for cutting tools were systematized. A comparative study of these methods was made on the productivity, shape complexity and strength features of the blanks. The possibilities to apply the Metal Injection Moulding (MIM) method for the production of bi-metal blanks by using of tool steel Catamold M2 and construction steel Catamold 42CrMo4 as initial material were established. The conducted survey of the microstructure of the bonding layer between the two metals showed presence of a wide diffusion zone, which proved that the bonding was good.

THE INFLUENCE OF CUTTING FORCES ON POWER CHARACTERISTICS OF HIGH-SPEED CHUCK

  • TITLE: THE INFLUENCE OF CUTTING FORCES ON POWER CHARACTERISTICS OF HIGH-SPEED CHUCK
  • AUTHOR(S): F.W.El-Dahabi, T.G.Jabbour, M.A.Abdulwahab
  • ABSTRACT: The effect of cutting forces on the clamping force in high-speed chucks been analyzed at different rotational speeds of the spindle, these speeds determine the magnitude of the centrifugal forces of the unbalanced chucks. the above considerations, design schemes and analytical dependencies can be used to design high-speed clamping chucks under given cutting conditions.

THE INFLUENCE OF CUTTING FORCES ON POWER CHARACTERISTICS OF HIGH-SPEED CHUCK

  • TITLE: THE INFLUENCE OF CUTTING FORCES ON POWER CHARACTERISTICS OF HIGH-SPEED CHUCK
  • AUTHOR(S): F.W.El-Dahabi, T.G.Jabbour, M.A.Abdulwahab
  • ABSTRACT: The effect of cutting forces on the clamping force in high-speed chucks been analyzed at different rotational speeds of the spindle, these speeds determine the magnitude of the centrifugal forces of the unbalanced chucks. the above considerations, design schemes and analytical dependencies can be used to design high-speed clamping chucks under given cutting conditions.

DIFFRACTION ANALYSIS OF SURFACE RESIDUAL STRESS DISTRIBUTION ON LASER WELDED STEEL PLATES

  • TITLE: DIFFRACTION ANALYSIS OF SURFACE RESIDUAL STRESS DISTRIBUTION ON LASER WELDED STEEL PLATES
  • AUTHOR(S): K. Trojan, N. Ganev, S. Němeček, J. Čapek, J. Němeček
  • ABSTRACT: The manufacturing processes of machine component introduce residual stresses (RS) that have an essential influence on their behaviour during service life. The purpose of this study is to evaluate the RS distribution of welds joined using high power diode laser. The paper outlines the capability of X-ray diffraction to describe a state of RS of high pressure welds made of P355 steel. The results from this paper show that laser welding has application potential in the welding of steels for pressure equipment.
  1. PERFORMANCE OF DIFFERENT TWISTED TAPE INSERTS IN TURBULENT TUBE FLOW – CRITICAL REVIEW
  2. DETERMINATION OF THE IMPULSE RESPONSE OF A COMMUNICATION CHANNEL IN THE PROCESS OF INFORMATION TRANSMISSION
  3. AUTONOMOUS AERIAL SYSTEM
  4. MODEL-BASED STUDY OF LOSSES IN CYLINDRICAL SHAPED INDUCTORS

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© 2026 Vasil Aprilov University Publishing House

Technical University of Gabrovo

eISSN: 3033-1498

ISSN: 1310-6686

  • Home
  • Editors Boards
  • Volumes
    • Vol 72 (2026)
    • Vol 71 (11/2025)
    • Vol 70 (06/2025)
    • Vol 69 (11/2024)
    • Vol 68 (6/2024)
    • Vol 67 (12/2023)
    • Vol 66 (6/2023)
    • Vol 65 (12/2022)
    • Vol 64 (6/2022)
    • Vol 63 (11/2021)
    • Vol 62 (6/2021)
    • Vol 61 (12/2020)
    • Vol 60 (6/2020)
  • Ethical guidelines
  • Guide for authors
  • Submit your Paper