Results 11 to 20 of about 905,969 (201)

Cutting Tool Path Modification to Uniform Scallop‐Height in Three-Axis Milling Operations

open access: yes, 2022
Abstract Scallop height, which is the uncut amount of workpiece materials in metal cutting paths, has an impact on the surface condition of manufactured products. To increase accuracy and surface quality of machined parts, the scallop height should be analyzed in order to be minimized.
Soori, Mohsen, Arezoo, Behrooz
openaire   +3 more sources

A Surface Based Approach for Constant Scallop HeightTool-Path Generation [PDF]

open access: yesThe International Journal of Advanced Manufacturing Technology, 2002
The machining of sculptured surfaces like molds and dies in 3-axis milling relies on the chordal deviation, the scallop height parameter and the planning strategy. The choice of these parameters must ensure that manufacturing surfaces respect the geometrical specifications.
Tournier, Christophe, Duc, Emmanuel
openaire   +3 more sources

An analytical model taking feed rate effect into consideration for scallop height calculation in milling with torus-end cutter [PDF]

open access: yesJournal of Intelligent Manufacturing, 2017
Feed rate effect on scallop height in complex surface milling by torus-end mill is rarely studied. In a previous paper, an analytical predictive model of scallop height based on transverse step over distance has been established. However, this model doesn’t take feed rate effect into consideration.
Segonds, Stéphane   +5 more
openaire   +2 more sources

Curvature effect on surface topography and uniform scallop height control in normal grinding of optical curved surface considering wheel vibration [PDF]

open access: yesOptics Express, 2021
High-precision optical components with complex shapes or microstructures have been extensively used in numerous fields such as biomedicine, energy and aerospace. In order to accurately achieve the specific functions of the components, the form accuracy and uniform surface quality need to reach an ever-high level. To achieve this, ultra-precision normal
Shanshan Chen   +5 more
openaire   +5 more sources

Constant Scallop-height Machining of Free-form Surfaces [PDF]

open access: yesJournal of Engineering for Industry, 1994
A novel approach for the NC tool-path generation of free-form surfaces is presented. Traditionally, the distance between adjacent tool-paths in either the Euclidean space or in the parametric space is kept constant. Instead, in this work, the scallop-height is kept constant.
D. C. H. Yang, K. Suresh
  +6 more sources

Automatic Tool Path Generation for Parametric Surfaces in Terms of Bezier Patches [PDF]

open access: yesEngineering and Technology Journal, 2009
The objective aim of this paper is to develop an algorithm that generate NC toolpath for parametric surfaces based on the accuracy of a desired surface.
Tahseen Fadhil Abbas
doaj   +1 more source

The natural history of periodontal disease—Part 2: In populations with access to dental care: The Studies of Health in Pomerania (SHIP)

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract In this descriptive analysis of the 21‐year follow‐up data from the SHIP‐START cohort and the 7‐year follow‐up data from the SHIP‐TREND cohort, we report the progression of clinical attachment levels (CAL), age effects on CAL change, and a detailed description of CAL progression and remission. At baseline, 4307 and 4420 persons participated in
Thomas Kocher   +4 more
wiley   +1 more source

Variance Component Decomposition for Growth Traits of the Bay Scallop (Argopecten irradians irradians)

open access: yesFrontiers in Marine Science, 2021
The bay scallop (Argopecten irradians irradians) is one of the most important shellfish species in China. Since their introduction into China, only mass selection has been used in bay scallop breeding.
Hengde Li   +7 more
doaj   +1 more source

Step over Estimation for Tool Path Generation Depending on Inclination Angle [PDF]

open access: yesEngineering and Technology Journal, 2013
This research presents the theoretical model, simulation and experimental verification of the maximum stepover estimation for different cases on the machine surface profile using the end-filleted cutter in multi-axis machining.
Ahmed A.A.Duroobi
doaj   +1 more source

Variability in the relationship between sea scallop shell height and meat weight [PDF]

open access: yesICES Journal of Marine Science, 2009
Abstract Rothschild, B. J., Adams, C. F., Sarro, C. L., and Stokesbury, K. D. E. 2009. Variability in the relationship between sea scallop shell height and meat weight. – ICES Journal of Marine Science, 66: 1972–1977. We investigated the spatial and temporal variability in the relationship between shell height and meat weight (SHMW) of ...
Brian J. Rothschild   +3 more
openaire   +1 more source

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