Tool-path verification in five-axis machining of sculptured surfaces

You, Chun-Fong; Chu, Chih-Hsing

doi:10.1007/bf01179606

Cited by 31 publications

(9 citation statements)

References 10 publications

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“…Research on the kinematics of three-and five-axis CNC machining (Chou andYang, 1991 and has improved the efficiency of machining operations. Other investigations shared similar goals (Philpot et al, 1995;Vichers and Quan, 1986;Wang et al, 1987;You andEhmann, 1989 andOliver, 1992;Oliver and Goodman, 1990;.…”

Section: Introductionmentioning

confidence: 71%

Machining Impossible Shapes

Olling¹,

Choi²,

Jerard³

1999

IFIP Advances in Information and Communication Technology

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Section: Introductionmentioning

confidence: 71%

Machining Impossible Shapes

Olling¹,

Choi²,

Jerard³

1999

IFIP Advances in Information and Communication Technology

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“…Generally it consists of two stages: detection and correction of tool interferences (You and Chu 1997). Our previous work (You and Chu 1996) developed a set of geometric algorithms corresponding to each stage, which is briefly summarized as follows.…”

Section: Avoidance Of Tool Interferencementioning

confidence: 99%

“…Given the cutter geometry, a cutter contact point, and the tool axis, tool interferences occur when the distance of a sample point on the machined surface to the tool axis is smaller than the tool radius. They can be found using the algorithm proposed in You and Chu (1997) and denoted as S = {S 1 , S 2 , …, S N }. Their projection points on the axis can be obtained and denoted as P = {P 1 , P 2 , …, P N }.…”

Section: Avoidance Of Tool Interferencementioning

confidence: 99%

An integrated framework of tool path planning in 5-axis machining of centrifugal impeller with split blades

Chu

Huang

2010

J Intell Manuf

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Centrifugal impeller is a complex part commonly used in aerospace, energy, and air-conditioning industries. Its manufacture involves multi-axis free form machining, a time consuming and error-prone process. Tool path planning is considered a critical issue in the process but still lacking of systematic solutions. This paper proposes a tool path planning framework for 5-axis machining of centrifugal impeller with split blades. It provides several CAM functions that assist the users to generate collision-free cutter motions with smooth tool orientations. First, the machining process is divided into four operations and the planning tasks of each operation are standardized. Second, the hub surfaces are properly decomposed, re-grouped, and re-parameterized to facilitate calculation of quality tool path with reduced cutter retraction and plunging. Finally, geometric algorithms are developed to automatically detect tool collisions and then correct the erroneous tool orientations. An optimization scheme is applied to minimize the total amount of tool posture changes after the correction. An impeller is machined with the NC codes generated from the framework. The result shows the effectiveness of this work in automating the tool path planning in 5-axis machining of highly intricate impeller.

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“…The points are used for checking interference. If any interference occurs, the orientation of the tool is revised according to the direction determined by summing all vectors between the cutting tool and the checking points [9].…”

Section: Introductionmentioning

confidence: 99%

Planning of tool orientation for five-axis cavity machining

Gian

Lin

2003

Int J Adv Manuf Technol

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This study examines the feasibility of using open regions and vector fields to determine the appropriate tool orientation in five-axis NC machining of cavity regions with undercut areas. The first step involves slicing the to-be-machined surface into thin layers and then comparing those layers to find the position of the undercut; that is, the position of open region. Twostaged checking is proposed to determine the tool orientation that prevents collision. The two stages are initial tool orientation and collision inspection. An initial tool orientation is obtained by assessing the angle of the vectors determined by data points of contours of the open region and cutter contact (CC) points. If a collision is found in the initial orientation, then the tool orientation must be revised until no obstacles are generated from the collision.

show abstract

Tool-path verification in five-axis machining of sculptured surfaces

Cited by 31 publications

References 10 publications

Machining Impossible Shapes

Machining Impossible Shapes

An integrated framework of tool path planning in 5-axis machining of centrifugal impeller with split blades

Planning of tool orientation for five-axis cavity machining

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