The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

Wang Bo-ping - One of the best experts on this subject based on the ideXlab platform.

Jiang Hong-wei - One of the best experts on this subject based on the ideXlab platform.

  • Setting of component tolerance in designing injection moulds based on Pro/E
    Die & Mould Industry, 2009
    Co-Authors: Jiang Hong-wei
    Abstract:

    The forming components can be off specification when their tolerances are set based on hole Basis or Shaft Basis system by using Pro/E software.A method was put forward and examined in which symmetric tolerance was applied to solve the problem.The operating procedures in getting a symmetric tolerance during the modeling process of component under various conditions were illustrated.

Neil Phelps - One of the best experts on this subject based on the ideXlab platform.

  • Limits and fits
    Manual of Engineering Drawing, 2020
    Co-Authors: Colin H Simmons, Dennis E Maguire, Neil Phelps
    Abstract:

    This chapter focuses on the system of engineering limits and fits. Engineering fits between two mating parts can be divided into three types, which include clearance fit, interference fit, and transition fit. In unilateral limits, the maximum and minimum limits of size are disposed on the same side of the basic size. The two bases of a system of limits and fits are the hole Basis and the Shaft Basis. In the hole Basis system, the basic diameter of the hole is constant while the Shaft size varies according to the type of fit. This system leads to greater economy of production, as a single drill or reamer size can be used to produce a variety of fits by merely altering the Shaft limits. In the Shaft Basis system, the hole size varies to produce the required class of fit with a basic-size Shaft. As a series of drills and reamers are required for this system, therefore it tends to be costly. BS EN 20286 Part 1 describes the ISO system of limits and fits, which provides the Basis of tolerances, deviations, and fits. BS EN 20286 Part 2 provides tables of standard tolerance grades and limit deviations for holes and Shafts. The ISO system provides various hole and Shaft tolerances to cater to a wide range of conditions.

Colin H Simmons - One of the best experts on this subject based on the ideXlab platform.

  • Limits and fits
    Manual of Engineering Drawing, 2020
    Co-Authors: Colin H Simmons, Dennis E Maguire, Neil Phelps
    Abstract:

    This chapter focuses on the system of engineering limits and fits. Engineering fits between two mating parts can be divided into three types, which include clearance fit, interference fit, and transition fit. In unilateral limits, the maximum and minimum limits of size are disposed on the same side of the basic size. The two bases of a system of limits and fits are the hole Basis and the Shaft Basis. In the hole Basis system, the basic diameter of the hole is constant while the Shaft size varies according to the type of fit. This system leads to greater economy of production, as a single drill or reamer size can be used to produce a variety of fits by merely altering the Shaft limits. In the Shaft Basis system, the hole size varies to produce the required class of fit with a basic-size Shaft. As a series of drills and reamers are required for this system, therefore it tends to be costly. BS EN 20286 Part 1 describes the ISO system of limits and fits, which provides the Basis of tolerances, deviations, and fits. BS EN 20286 Part 2 provides tables of standard tolerance grades and limit deviations for holes and Shafts. The ISO system provides various hole and Shaft tolerances to cater to a wide range of conditions.

Guo Xia - One of the best experts on this subject based on the ideXlab platform.

  • Application of Close Bead Shaft in Design of Arm CMMs
    Aviation Precision Manufacturing Technology, 2011
    Co-Authors: Guo Xia
    Abstract:

    Based on describing the working principle of dense beads Shaft Basis,the application of dense bead Shaft structure in articulated arm measuring machine design was presented.The arm CMM's overall structure was introduced.The structural analysis and calculation for close bead Shaft were made.The articulated arm measuring machine were tested and the results show that the close bead Shaft can meet the design requirements.