Abstract

The edge effect is one of the most important subjects in optical manufacturing. The removal function at different positions of the sample in the process of fluid jet polishing (FJP) is investigated in the experiments. Furthermore, by using finite-element analysis (FEA), the distributions for velocity and pressure of slurry jets are simulated. Experimental results demonstrate that the removal function has a ring-shaped profile, except for a little change in the size at the operated area even if the nozzle extends beyond the edge of the sample. FEA simulations reveal a similar distribution of velocity with a cavity resulting in the ring-shaped profile of material removal at different impact positions. To a certain extent, therefore, the removal function at the edge of the surface of the sample appears similar to that inside of it, so that the classical edge effect can be neglected in FJP.

© 2006 Optical Society of America

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References

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  1. A. Cordero-Dávila, J. González-García, M. Pedrayes-López, L. A. Aguilar-Chiu, J. Cuautle-Cortés, and C. Robledo-Sánchez, "Edge effects with the Preston equation for a circular tool and workpiece," Appl. Opt. 43, 1250-1254 (2004).
    [CrossRef] [PubMed]
  2. T. Fujita, M. Touzov, S. Michiya, and T. K. Doy, Control of Edge Polishing Profile with Air Float Carrier (IEEE, 2001), pp. 183-186.
  3. A. Shorey, A. Jones, P. Dumas, and M. Tricard, "Improved edge performance in magnetorheological finishing (MRF)," (QED Technologies, Inc.), http://optics.nasa.gov/tech_days/tech_days_2004/docs/17%20Aug%202004/15%20QED%20Edge%20Effects.pdf.
  4. O. W. Fähnle, H. van Brug, and H. J. Frankena, "Fluid jet polishing of optical surfaces," Appl. Opt. 37, 6671-6673 (1998).
    [CrossRef]
  5. H. Fang, P. Guo, and J. Yu, "Analysis of material removal mechanism in fluid jet polishing by finite element method," Opt. Prec. Eng. 2, 218-223 (2006).
  6. H. Fang, P. Guo, and J. Yu, "Dwell function algorithm in fluid jet polishing," Appl. Opt. 45, 4291-4296 (2006).
    [CrossRef] [PubMed]

2006 (2)

H. Fang, P. Guo, and J. Yu, "Analysis of material removal mechanism in fluid jet polishing by finite element method," Opt. Prec. Eng. 2, 218-223 (2006).

H. Fang, P. Guo, and J. Yu, "Dwell function algorithm in fluid jet polishing," Appl. Opt. 45, 4291-4296 (2006).
[CrossRef] [PubMed]

2004 (1)

1998 (1)

Aguilar-Chiu, L. A.

Cordero-Dávila, A.

Cuautle-Cortés, J.

Doy, T. K.

T. Fujita, M. Touzov, S. Michiya, and T. K. Doy, Control of Edge Polishing Profile with Air Float Carrier (IEEE, 2001), pp. 183-186.

Dumas, P.

A. Shorey, A. Jones, P. Dumas, and M. Tricard, "Improved edge performance in magnetorheological finishing (MRF)," (QED Technologies, Inc.), http://optics.nasa.gov/tech_days/tech_days_2004/docs/17%20Aug%202004/15%20QED%20Edge%20Effects.pdf.

Fähnle, O. W.

Fang, H.

H. Fang, P. Guo, and J. Yu, "Analysis of material removal mechanism in fluid jet polishing by finite element method," Opt. Prec. Eng. 2, 218-223 (2006).

H. Fang, P. Guo, and J. Yu, "Dwell function algorithm in fluid jet polishing," Appl. Opt. 45, 4291-4296 (2006).
[CrossRef] [PubMed]

Frankena, H. J.

Fujita, T.

T. Fujita, M. Touzov, S. Michiya, and T. K. Doy, Control of Edge Polishing Profile with Air Float Carrier (IEEE, 2001), pp. 183-186.

González-García, J.

Guo, P.

H. Fang, P. Guo, and J. Yu, "Analysis of material removal mechanism in fluid jet polishing by finite element method," Opt. Prec. Eng. 2, 218-223 (2006).

H. Fang, P. Guo, and J. Yu, "Dwell function algorithm in fluid jet polishing," Appl. Opt. 45, 4291-4296 (2006).
[CrossRef] [PubMed]

Jones, A.

A. Shorey, A. Jones, P. Dumas, and M. Tricard, "Improved edge performance in magnetorheological finishing (MRF)," (QED Technologies, Inc.), http://optics.nasa.gov/tech_days/tech_days_2004/docs/17%20Aug%202004/15%20QED%20Edge%20Effects.pdf.

Michiya, S.

T. Fujita, M. Touzov, S. Michiya, and T. K. Doy, Control of Edge Polishing Profile with Air Float Carrier (IEEE, 2001), pp. 183-186.

Pedrayes-López, M.

Robledo-Sánchez, C.

Shorey, A.

A. Shorey, A. Jones, P. Dumas, and M. Tricard, "Improved edge performance in magnetorheological finishing (MRF)," (QED Technologies, Inc.), http://optics.nasa.gov/tech_days/tech_days_2004/docs/17%20Aug%202004/15%20QED%20Edge%20Effects.pdf.

Touzov, M.

T. Fujita, M. Touzov, S. Michiya, and T. K. Doy, Control of Edge Polishing Profile with Air Float Carrier (IEEE, 2001), pp. 183-186.

Tricard, M.

A. Shorey, A. Jones, P. Dumas, and M. Tricard, "Improved edge performance in magnetorheological finishing (MRF)," (QED Technologies, Inc.), http://optics.nasa.gov/tech_days/tech_days_2004/docs/17%20Aug%202004/15%20QED%20Edge%20Effects.pdf.

van Brug, H.

Yu, J.

H. Fang, P. Guo, and J. Yu, "Analysis of material removal mechanism in fluid jet polishing by finite element method," Opt. Prec. Eng. 2, 218-223 (2006).

H. Fang, P. Guo, and J. Yu, "Dwell function algorithm in fluid jet polishing," Appl. Opt. 45, 4291-4296 (2006).
[CrossRef] [PubMed]

Appl. Opt. (3)

Opt. Prec. Eng. (1)

H. Fang, P. Guo, and J. Yu, "Analysis of material removal mechanism in fluid jet polishing by finite element method," Opt. Prec. Eng. 2, 218-223 (2006).

Other (2)

T. Fujita, M. Touzov, S. Michiya, and T. K. Doy, Control of Edge Polishing Profile with Air Float Carrier (IEEE, 2001), pp. 183-186.

A. Shorey, A. Jones, P. Dumas, and M. Tricard, "Improved edge performance in magnetorheological finishing (MRF)," (QED Technologies, Inc.), http://optics.nasa.gov/tech_days/tech_days_2004/docs/17%20Aug%202004/15%20QED%20Edge%20Effects.pdf.

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Figures (11)

Fig. 1
Fig. 1

(Color online) Drawing of the impact of the slurry jet and the sample.

Fig. 2
Fig. 2

(Color online) Distribution of material removal with a normal incident angle.

Fig. 3
Fig. 3

(Color online) Characteristics of the fluid field after impact: (a) distribution of the fluid field, (b) pressure and velocity field on the surface.

Fig. 4
Fig. 4

(Color online) Distribution of material removal when the nozzle was fixed with a distance of approximately 3   mm .

Fig. 5
Fig. 5

(Color online) Characteristics of the fluid field after impact: (a) distribution of the fluid field without showing the workpiece that lays on the bottom of the left side, (b) description of the velocity field.

Fig. 6
Fig. 6

(Color online) Characteristics of the fluid field after impacting when the nozzle was fixed with a distance of approximately 0.5   mm .

Fig. 7
Fig. 7

(Color online) Description of the fluid field when the nozzle was fixed with a distance of approximately 0 mm.

Fig. 8
Fig. 8

(Color online) Distribution of material removal when the nozzle was fixed with a distance of approximately 0   mm .

Fig. 9
Fig. 9

(Color online) Distribution of material removal and fluid velocity when the polishing head extends the sample by approximately s = 0.8   mm : (a) fluid velocity, (b) material removal.

Fig. 10
Fig. 10

(Color online) Profile of removal at the ragged edge: (a) cross section of removal, (b) 2D profile of removal.

Fig. 11
Fig. 11

(Color online) Curve of surface: (a) original surface: (b) final surface after operation.

Tables (1)

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Table 1 Removal Rate as a Function of the Distance of the Nozzle

Equations (1)

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Δ z ( x , y ) = R ( x , y ) D ( x , y ) .

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