Journal of Manufacturing Science and Engineering: Recent submissions
Now showing items 6201-6220 of 7723
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Tool Design for ECM: Correction Factor Method
(The American Society of Mechanical Engineers (ASME), 1988)A simple model for tool (cathode) design for plane parallel electrochemical machining and electrochemical drilling has been proposed. Assuming the initial tool shape to be complementary to required ... -
Pressbrake Bending in the Punch-Sheet Contact Region—Part 2: Gap Formation and the Direction of Sheet Motion
(The American Society of Mechanical Engineers (ASME), 1988)In Part 1 of this paper, simple models of nonuniformities in pressbrake bending in the punch-sheet contact region were presented. An extreme manifestation of these nonuniformities is the appearance ... -
Pressbrake Bending in the Punch-Sheet Contact Region—Part 1: Modeling Nonuniformities
(The American Society of Mechanical Engineers (ASME), 1988)A simple model of pressbrake bending in the punch-sheet contact region is presented. The pressure and shear stress at the punch-sheet interface cause the stress distribution in the sheet to ... -
The Detection of Tool Breakage in Milling Operations
(The American Society of Mechanical Engineers (ASME), 1988)The paper describes a rather simple and efficient algorithm for processing the milling force signal to detect cutter breakage. Using sampling synchronized with cutter teeth the basic variation ... -
An In-Process Flatness Error Measurement and Compensatory Control System
(The American Society of Mechanical Engineers (ASME), 1988)The principles of a new in-process measurement and control system for flatness errors in machining have been introduced. The laser-based system consists of a stylus, a geometrical table measurement ... -
Estimating the Nonlint Content of Yarn With Television Images
(The American Society of Mechanical Engineers (ASME), 1988)Video scanning type trashmeters have been developed to identify and integrate the amount of trash observed in cotton. They perform a surface scan of trash particles in lint samples compressed ... -
A Simplified Identification Method for Autoregressive Models of Cutting Force Dynamics
(The American Society of Mechanical Engineers (ASME), 1988)The quality and the duration of the metal removal process are two fundamental topics of today’s manufacturing technology. This paper presents a technique addressing the quality issue. There are ... -
Automated Group Technology Part Coding From a Three-Dimensional CAD Database
(The American Society of Mechanical Engineers (ASME), 1988)A system of software, named CODER, has been written which can analyze the solid model of a part and generate a group technology part code through the identification of form features. The ... -
Monitoring Drilling Wear States by a Fuzzy Pattern Recognition Technique
(The American Society of Mechanical Engineers (ASME), 1988)This paper introduces a new approach for on-line monitoring of drill wear states by using a fuzzy C-means algorithm. Experimental and simulation results have shown that drill wear conditions ... -
The Mechanism of Chatter Vibration in a Spindle-Workpiece System: Part 3—Analytical Considerations
(The American Society of Mechanical Engineers (ASME), 1988)Chatter vibration occurring in the spindle-workpiece system of a lathe is treated theoretically, considering the phase lag of cutting force and chatter marks, the dynamic variation effects on ... -
Round Bar Heating With Swirl Burners
(The American Society of Mechanical Engineers (ASME), 1988)A method of heating round steel bars using a swirl burner or swirl burner furnace combination is described. This technique is suitable for surface hardening or processing of long steel bars. ... -
Finite Element Method for the Analysis of a Material Property Identification Algorithm for Pressbrake Bending
(The American Society of Mechanical Engineers (ASME), 1988)Finite element analysis is used to evaluate an algorithm to identify the material characteristics of a sheet being bent in a pressbrake from force and displacement measurements. In this way, ... -
Analysis of Contact Stress and Deformation in a Trilobe Polygonal Connection
(The American Society of Mechanical Engineers (ASME), 1988)A numerical method for determination of contact stress and deformation in a multilobe connection of shafts and hubs is presented. It relies upon NASTRAN for computation of surface deflections ... -
Belt Forces With Grinding
(The American Society of Mechanical Engineers (ASME), 1988)This paper investigates belt forces in abrasive belt grinding. The distribution of normal and tangential belt forces are determined analytically and experimentally for belt grinding with both a ... -
The Mechanism of Chatter Vibration in a Spindle-Workpiece System: Part 1—Properties of Self-Excited Chatter Vibration in Spindle-Workpiece System
(The American Society of Mechanical Engineers (ASME), 1988)The elimination of chatter vibration is important to improve cutting accuracy and to improve productivity of the cutting operation. In this study, the characteristics of the primary and regenerative ... -
An Approximate Three-Dimensional Metal Flow Analysis for Shape Rolling
(The American Society of Mechanical Engineers (ASME), 1988)An approximate three-dimensional metal flow analysis for shape rolling is developed. The analysis, which is presently applicable to rod rolling, is based on an upper-bound approach in which an ... -
Worst Case Tolerance Analysis with Nonlinear Problems
(The American Society of Mechanical Engineers (ASME), 1988)When designers assign tolerances on engineering drawings, they have a significant influence on the resulting cost and producibility of manufactured products. A rational basis for assigning tolerances ... -
The Mechanism of Chatter Vibration in a Spindle-Workpiece System: Part 2—Characteristics of Dynamic Cutting Force and Vibration Energy
(The American Society of Mechanical Engineers (ASME), 1988)The cutting force acting in the dynamic state of a lathe spindle-workpiece system is affected by the dynamic variations of cutting depth, cutting velocity, and rake angle. In this study, the ... -
Assessment of Deep-Drawability of Mild Steel Sheets in Consideration of r-Value Change During Processing
(The American Society of Mechanical Engineers (ASME), 1988)In the previous study, it was found that the plastic anisotropy of commercially pure aluminum sheets changed during the deep-drawing process, and that this change influenced markedly the ... -
Manufacture of High Precision Spur Gears With End Milling Cutters
(The American Society of Mechanical Engineers (ASME), 1988)A new method is proposed for cutting large module spur gears on NC milling machines, using end milling cutters. End milling eliminates undercutting and leads to a significant reduction of ...