A new machine strategy for sculptured surfaces using offset surface

Kim, K. I.; Kim, K.

doi:10.1080/00207549508930236

Cited by 44 publications

(23 citation statements)

References 10 publications

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“…These offset surfaces have already been used to compute tool path, especially with ball end mills [18,19] but also with flat and filleted end mills [20]. We focused on the definition of the MS in 5-axis end milling.…”

Section: The Concept Of the Machining Surfacementioning

confidence: 99%

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Iso-scallop tool path generation in 5-axis milling

Tournier

Duc

2004

Int J Adv Manuf Technol

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International audienceThis paper presents a new method of computing constant scallop height tool paths in 5-axis milling on sculptured surfaces. Usually, iso-scallop tool paths computation methods are based on approximations. The attempted scallop height is modelled in a given plane to ensure a fast computation of the tool path. We propose a different approach, based on the concept of the machining surface, which ensures a more accurate computation. The machining surface defines the tool path as a surface, which applies in 3 or 5-axis milling with the cutting tools usually used. The machining surface defines a bi parametric modelling of the locus of a particular point of the tool, and the iso-scallop surface allows to easily find iso-scallop tool centre locations. An implementation of the algorithms is done on a free-form surface with a filleted endmill in 5-axis milling

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Section: The Concept Of the Machining Surfacementioning

confidence: 99%

“…In 3-axis milling, we are able to drive the tool centre location point C L and to find the resulting tool contact point C C like in the offset [18] and APT approaches. However, this approach has not been applied in 5-axis milling due to its complexity [21].…”

Section: The Concept Of the Machining Surfacementioning

confidence: 99%

Iso-scallop tool path generation in 5-axis milling

Tournier

Duc

2004

Int J Adv Manuf Technol

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“…Current CAM programs generate tool trajectories correctly so you can produce rotation parts [2]. As a result, manufacturing inaccuracies are mainly due to defects generated by machining [3].…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies of parameters likely to have an influence on the dimensions obtained along the direction Z highlighted the dimensional instability phenomenon for the Z-axis during machining [2,5,6].…”

Section: Introductionmentioning

confidence: 99%

The characterisation of the dimensional change of the Z-axis in NC turning

Segonds

Landon

Mousseigne

et al. 2004

Int J Adv Manuf Technol

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Manufacturing high value-added parts often requires a considerable amount of time spent on machining, during which the machine's dimensional characteristics may change. During this study, we endeavoured to characterise the dimensional change of the slideways and ball screw spindle of the Z-axis on an NC lathe. Indeed, such changes are harmful when it comes to obtaining precise dimensions along the Z direction of the lathe. Firstly, we specified the context in which the study was to be conducted and the problem we were confronted with. We then conducted an experimental study to highlight the parameters having an influence on the dimensional changes of the Z-axis. We then implemented modelling to generate a prediction model for this axis's behaviour during machining. We were thus able to compensate for such errors by inserting programmed offsets, calculated from the prediction model [1]. We rounded off our study by milling a series of parts using a corrected NC programme that included a compensation for the dimensional change of the Z-axis in order to validate our approach.

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“…The tool path generation using offset surfaces has already been the object of numerous papers [8] [9]. Among the problems encountered in the tool path generation using offset surfaces, the most constraining are the problems of loops or self intersections and of precision [10] [11].…”

Section: The Concept Of the Machining Surfacementioning

confidence: 99%