CN107139345B - Ultra-precision turning and forming method for complex curved surfaces of brittle materials - Google Patents
Ultra-precision turning and forming method for complex curved surfaces of brittle materials Download PDFInfo
- Publication number
- CN107139345B CN107139345B CN201710427481.8A CN201710427481A CN107139345B CN 107139345 B CN107139345 B CN 107139345B CN 201710427481 A CN201710427481 A CN 201710427481A CN 107139345 B CN107139345 B CN 107139345B
- Authority
- CN
- China
- Prior art keywords
- cutting
- tool servo
- curved
- fast
- complex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 238000003754 machining Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 12
- 229910052732 germanium Inorganic materials 0.000 claims description 6
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 241000700608 Sagitta Species 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
本发明涉及一种脆性材料复杂曲面超精密车削成型方法，包括：依据光学性能最优原则优化设计脆性材料近回转复杂曲面，对设计曲面按照回转部分和非回转部分进行面形分解，计算分解获得的非回转面的非回转度；搭建快刀伺服车削加工系统，将加工刀具安装在快速伺服机构上形成快刀伺服机构；根据快刀伺服车削加工过程特性和材料的切削性能，设计合适切削参数和刀具几何参数；基于加工参数和刀具几何参数进行回转部分和非回转部分加工路径生成，并在加工前进行路径补偿，补偿后刀具轮廓历经该路径后形成加工表面；将被加工工件装配于机床主轴，进行快刀伺服车削加工。
The invention relates to an ultra-precision turning and forming method for complex curved surfaces of brittle materials. the non-rotation degree of the non-rotating surface; build a fast-tool servo turning machining system, install the machining tool on the fast-tool servo mechanism to form a fast-tool servo mechanism; design appropriate cutting parameters and tool geometry according to the process characteristics of the fast-tool servo turning process and the cutting performance of the material parameters; based on the machining parameters and tool geometry parameters, the machining paths of the rotary part and the non-rotary part are generated, and the path compensation is performed before machining. After the compensation, the tool contour will go through the path to form the machining surface; Fast tool servo turning.
Description
Technical field
The present invention relates to a kind of method for turning.
Background technique
It is non-rotational symmetric optical surface that surface freely changes that optics is complex-curved.The complex-curved application field of optics
It is extremely wide, cover multiple interdisciplinary fields such as new energy, aerospace, illumination imaging, bioengineering.Compare traditional optical table
Face, optics is complex-curved to have more superior performance, and curved surface freedom degree can propagate light control effectively greatly, can have
Conducive to expansion field angle and reduce difference and distortion, simultaneously for more light optic systems, addition is complex-curved to can be reduced system
Volume and weight, while improving the image quality of system.
Fragile material (such as semiconductor material, optical crystal material) has superior ultraviolet or infrared transmittivity, high damage
Hurt the characteristics such as threshold value, high refractive index, complex-curved application demand is gradually increasing, however is limited by material property, real
Existing fragile material processing still has numerous difficulties.Since optical crystal enbrittles greatly, breaking strength and yield strength
It is closer to, currently, general superfine grinding is to process the complex-curved important method of fragile material.However, grinding side
Method is to be ground optical device molding repeatedly by small abrasive grain, and processing efficiency is lower, and for soft-brittle material, abrasive material
The easy portion of being embedded within forms impurity and defect, in turn results in the failure of optical function.And Ultra-precision machining method is to pass through
The processing of diamond single-point is particularly suitable for carrying out complex-curved optical device stable and controllable processing.And fragile material is being cut
During cutting, material easily receives stress and generates the surface damages such as brittle fracture.To guarantee that material is in no embrittlement in cutting process
Under the conditions of carry out, need to control single removal amount material crisp modeling transformation depth bounds within.It is complicated for fragile material bent
For face, single cutting removal amount need to be controlled during high-speed turning.Therefore, the complex-curved height of fragile material ultraprecise is studied
Fast turning forming method has important practical significance for the deep application for promoting fragile material optics complex-curved.
Summary of the invention
The present invention provides a kind of brittleness that can avoid excessively free face shape design while guaranteeing optical property to greatest extent
The complex-curved ultra-precise cutting forming method of material.Technical solution is as follows:
A kind of complex-curved ultra-precise cutting forming method of fragile material, including the following steps:
1) foundation optical property principle of optimality optimization design fragile material closely turns round complex-curved, to asymmetric item in design
Coefficient carry out numerical definiteness constraint, thus restricted curved surface variation freedom degree；
2) shape decomposition in face is carried out according to rotating part and non-rotating part to design curved surface, calculates and decomposes the non-rotating of acquisition
The non-rotating degree in face determines the index within the scope of fast tool servo working ability；
3) fast tool servo turnery processing system is built, process tool is mounted on fast tool servo and forms fast tool servo
Mechanism；
4) according to the cutting ability of fast tool servo Tutrning Process characteristic and material, suitable cutting parameter and cutter are designed
Geometric parameter, to guarantee machined surface quality；
5) rotating part is carried out based on machined parameters and tool geometrical parameter and non-rotating part machining path generates, and
Path compensation is carried out before processing, cutter profile is after forming finished surface behind the path after compensation；
6) workpiece to be machined is assemblied in machine tool chief axis, carries out fast tool servo turnery processing, when processing, main shaft rotation is driven
Workpiece rotation, the guide rail of lathe provides laterally and cutting-in direction is fed and the high frequency for combining fast tool servo mechanism to generate small size is past
Multiple movement, forms complex-curved face shape.
The fragile material can be monocrystalline germanium, the range of non-rotating degree determined by step 2) be [- 27.841,
27.839] μm, within the scope of fast tool servo working ability.Designed cutting parameter and tool geometrical parameter is as follows: main shaft
Revolving speed is 2500rpm, nose radius 0.5mm, is 1mm/min in cutter transverse direction feed rate, back engagement of the cutting edge is 1 μm
When, the control of single removal amount is in 30nm hereinafter, being removed with reaching in the crisp modeling transformation range of monocrystalline germanium.
The present invention realizes the complex-curved processing of fragile material using fast tool servo turnery processing mode, and it is crisp to avoid cutting
Property materials process in easy embrittlement the problem of, realize high efficiency, great surface quality processing.Have compared with prior art following excellent
Point:
(1) it is moved back and forth by the fast response servo of cutter and is coupled with ultra-precise cutting mode, realized to material fast and stable
Cutting, the difficulty having taken into account the contradiction of cutting fragile material and complex surface machining, while both having reduced guarantees well
Fragile material complex-curved surface quality and optical property.
(2) mentality of designing of the nearly surface of revolution is used, it can be using smooth complex-curved or containing micro-structure song
Face.This method, similarly can High-speed machining other materials other than being suitable for cutting fragile material.Turn round the mode of cutting not
The complex-curved of round bore can be only processed, the complex-curved of processing other shapes bore is equally applicable to.
Detailed description of the invention
Fig. 1 fast tool servo movement auxiliary turning schematic diagram
Fig. 2 closely turns round complex-curved composition and non-rotating degree schematic diagram
Fig. 3 actual cut thickness schematic diagram
Fig. 4 tool geometry compensation relationship figure
Specific embodiment
For fragile material complex surface machining formation problems, the present invention proposes fast tool servo method for turning, in traditional vehicle
Fast response servo movement is added on the basis of cutting, and increases one-dimensional quick movement for tool motion, i.e. cutter can be along rise direction (Z-direction)
The high-frequency reciprocating movement of small stroke is carried out, this mode is also referred to as fast tool servo.Fast tool servo auxiliary is added in turning process
Processing can add corresponding non-rotating amount, to generate the complexity with non-rotational symmetric on the basis of surface of revolution is processed
Curved surface.In the case that there is fast tool servo system higher-frequency to ring, it is adapted to high-speed main spindle revolving speed, to guarantee complex-curved
Quick cutting forming.
Specific embodiment is as follows:
1. according to optical property principle of optimality optimization design fragile material closely turn round it is complex-curved, to asymmetric item in design
Coefficient carry out numerical definiteness constraint, thus restricted curved surface variation freedom degree；
2. pair design curved surface carries out the decomposition of face shape according to rotating part and non-rotating part, calculates and decompose the non-rotating of acquisition
The non-rotating degree in face determines the index within the scope of fast tool servo working ability；
3. building fast tool servo turnery processing system, including turning main shaft, traverse feed guide rail, cutting depth feeding is led
Process tool is mounted on formation fast tool servo mechanism on fast tool servo by rail；
4. designing suitable cutting parameter and cutter according to the cutting ability of fast tool servo Tutrning Process characteristic and material
Geometric parameter, to guarantee machined surface quality；
5. rotating part is carried out based on machined parameters and tool geometrical parameter and non-rotating part machining path generates, and
Path compensation is carried out before processing, cutter profile is after forming finished surface behind the path after compensation；
6. workpiece to be machined is assemblied in machine tool chief axis, fast tool servo turnery processing is carried out.When processing, main shaft rotation is driven
Workpiece rotation, the guide rail of lathe provides laterally and cutting-in direction is fed and the high frequency for combining fast tool servo mechanism to generate small size is past
Multiple movement, forms complex-curved face shape.
Fragile material workpiece is installed on the main shaft (C axis) of super precision lathe specific processing method as shown in Figure 1:, main shaft
Rotary shaft and complex-curved face shape central coaxial.Main shaft rotates a circle in process, and diamond cutter is in quick motion control
Under system SERVO CONTROL, change the motion control for carrying out the direction Z' according to surface radius in different rotary angle.Therefore, whole
A complex-curved upper carry out continuous cutting, thickness of cutting is by tool geometry and the cutter wheel on turning radial direction
Wide spacing is determined.One week cutter of every processing is fed under X-axis control, realizes entire complex-curved helix processing,
Until surface processing is complete.The advantages of revolution cutting is utilized in this processing method, resolves into a revolution pair for complex-curved
Claim surface and a non-rotating face, as shown in Figure 2.Rotationally symmetrical surface is traversed using the X-axis and Z axis of lathe, and fast tool servo
The main shaft rotation for reciprocating through coupling lathe itself of mechanism offer and the non-rotating face of guide rail linear motion traversal, therefore,
It may be implemented to complex-curved continuously quick cutting, high in machining efficiency and processing quality is good.
Fast tool servo stroke and frequency response are considered in the design, have carried out the nearly complex-curved design of the surface of revolution, the song
Face curved surface uses XY polynomial expression, and equation is as follows,
Wherein c, k are respectively aspherical curvature and circular cone coefficient, AmnFor multinomial coefficient.According to the above analysis, the table
It should be formed up to formula to add the variable quantity of very little on rotationally symmetrical curved surface (aspherical for one herein), i.e.,
Z (x, y)=zrot(r)+δ(r,θ) (2)
Wherein, δ (r, θ) is the variable quantity for the very little added on rotationally symmetrical curved surface, the rotating part source in (2) formula
The rotationally symmetrical part in conic section expression formula and multinomial in (1) formula, and variable quantity δ (r, θ) is in sagitta of arc direction
The minor change for providing rise finally obtains nearly surface of revolution to eventually become non-rotating ingredient.
In a particular embodiment, by taking the continuous complex-curved processing of typical fragile material monocrystalline germanium as an example.Closely returned
The parameter in XY polynomial surface expression formula (1) after turning the complex-curved design in face is as shown in table 1.Its surface of revolution is non-by even
Spherical surface expression, i.e.,
Design parameter is as shown in table 2.Corresponding non-rotating face is expressed as simple XY multinomial, i.e.,
Design parameter is as shown in table 3.The range of non-rotating degree is that [- 27.841,27.839] μm is closely turned round due to using
Face can guarantee the higher rotation speed of turning main shaft in fast tool servo turnery processing, be advantageously implemented fragile material high-efficiency low-damage and add
Work.
Needed in the above process concern machined parameters select permeability, that is, select the suitable speed of mainshaft, feed rate with
And tool geometry, because corresponding actual cut thickness is answered under Cutting parameters for the fragile material processed
Crisp modeling transformation thickness in the material is hereinafter, the size of thickness of cutting is as shown in Figure 3.The speed of mainshaft exists in specific embodiment
2500rpm, nose radius 0.5mm, when cutter X-direction feed rate is 1mm/min, and back engagement of the cutting edge is 1 μm, single removal
Amount control is removed in the crisp modeling transformation range of monocrystalline germanium in 30nm hereinafter, can reach, and ensure that the fragile material without fragmentation
Processing.
Each position minimum point and ideal surfaced to guarantee tool motion is tangent, need to be in the motion path for generating tool sharpening
When, it needs to compensate the geometry of cutter, the compensation of tool position is as shown in Figure 4.For Circular Nose Cutting Edge cutter, work as cutter
When positioned at workpiece along the radial profile f (r) of assigned direction, before machining path compensation, center cutter P0Positioned at contour line
On, it needs cutter moving specific range along Z axis at this time, which should be equal to the maximum of contour line and cutter profile rise difference
Value, i.e.,
Δ z=max { Li} (5)
After compensation, center cutter is located at Pt, cutter profile and surface are tangent along the contour line of radial direction, point of contact Pc, change
Point is also actual cut point.At this point, effectively avoiding the over-cutting in actual processing by the compensation to tool geometry.
After choosing suitable machined parameters and path compensation, ideal finished surface should be cutter profile line and transports along machining path reality
Surface is formed by after dynamic.
Complex-curved parameter is closely turned round in 1 embodiment of table
Complex-curved surface of revolution partial parameters are closely turned round in 2 embodiment of table
Complex-curved non-rotating face partial parameters are closely turned round in 3 embodiment of table
Claims (3)
1. a kind of complex-curved ultra-precise cutting forming method of fragile material, including the following steps:
1) foundation optical property principle of optimality optimization design fragile material closely turns round complex-curved, to asymmetric item system in design
Number carries out numerical definiteness constraint, thus the freedom degree of restricted curved surface variation；
2) shape decomposition in face is carried out according to rotating part and non-rotating part to design curved surface, calculates and decomposes the non-rotating face obtained
Non-rotating degree determines the index within the scope of fast tool servo working ability；
3) fast tool servo turnery processing system is built, process tool is mounted on formation fast tool servo machine on fast tool servo
Structure；
4) according to the cutting ability of fast tool servo Tutrning Process characteristic and material, suitable cutting parameter and cutter geometry are designed
Parameter, to guarantee machined surface quality；
5) rotating part is carried out based on cutting parameter and tool geometrical parameter and non-rotating part machining path generates, and processed
Preceding carry out path compensation, cutter profile is after forming finished surface behind the path after compensation；
6) workpiece to be machined is assemblied in machine tool chief axis, carries out fast tool servo turnery processing, when processing, main shaft rotation drives workpiece
Rotation, the guide rail of lathe, which provides, laterally to be fed with cutting-in direction and combines the high-frequency reciprocating fortune of fast tool servo mechanism generation small size
It is dynamic, form complex-curved face shape.
2. turning forming method according to claim 1, which is characterized in that the fragile material is monocrystalline germanium, step 2)
The range of identified non-rotating degree is [- 27.841,27.839] μm, within the scope of fast tool servo working ability.
3. turning forming method according to claim 2, which is characterized in that cutting parameter designed by step 4) and cutter
Geometric parameter is as follows: speed of mainshaft 2500rpm, nose radius 0.5mm, is 1mm/ in cutter transverse direction feed rate
Min, when back engagement of the cutting edge is 1 μm, the control of single removal amount is in 30nm hereinafter, being carried out with reaching in the crisp modeling transformation range of monocrystalline germanium
Removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427481.8A CN107139345B (en) | 2017-06-08 | 2017-06-08 | Ultra-precision turning and forming method for complex curved surfaces of brittle materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427481.8A CN107139345B (en) | 2017-06-08 | 2017-06-08 | Ultra-precision turning and forming method for complex curved surfaces of brittle materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107139345A CN107139345A (en) | 2017-09-08 |
| CN107139345B true CN107139345B (en) | 2019-02-26 |
Family
ID=59781007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710427481.8A Active CN107139345B (en) | 2017-06-08 | 2017-06-08 | Ultra-precision turning and forming method for complex curved surfaces of brittle materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107139345B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067633A (en) * | 2017-12-06 | 2018-05-25 | 中国航发哈尔滨东安发动机有限公司 | A kind of surface micro-structure and its array vibration processing method |
| CN109261466B (en) * | 2018-11-16 | 2020-04-24 | 山东大学 | Functional gradient coating design method considering deposition rate correction |
| CN110039665B (en) * | 2019-05-14 | 2020-12-04 | 湖南大学 | A device for dynamic monitoring of ductile and brittle removal in ultra-precision machining of ceramic materials |
| CN112496353B (en) * | 2020-11-18 | 2022-03-29 | 中国科学院上海技术物理研究所 | Diamond turning free-form surface rough turning process method |
| CN114137904B (en) * | 2021-12-08 | 2023-07-14 | 北京精雕科技集团有限公司 | Path generation method for curved surface turning |
| CN114952425B (en) * | 2022-05-27 | 2023-06-27 | 南方科技大学 | Method for processing aspheric surface by linear blade |
| CN115648459A (en) * | 2022-10-24 | 2023-01-31 | 中国航空工业集团公司北京航空精密机械研究所 | Zernike free-form surface slow-tool servo machining tool and aligning method |
| CN117921868A (en) * | 2024-01-29 | 2024-04-26 | 江苏理工学院 | Processing method of equal-thickness off-axis parabolic reflector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685298A1 (en) * | 1994-04-12 | 1995-12-06 | Schneider GmbH + Co. KG | Procedure of and device for fabricating aspheric lens surfaces |
| CN101424933A (en) * | 2007-11-02 | 2009-05-06 | 鸿富锦精密工业（深圳）有限公司 | Inclined-axis aspheric mirror processing system and method |
| CN101670442A (en) * | 2009-09-22 | 2010-03-17 | 天津大学 | Method for improving shape accuracy and processing efficiency of off-axis aspheric mirror |
| CN102049530A (en) * | 2010-11-03 | 2011-05-11 | 天津大学 | Precision turning processing method for off-axis aspheric mirror with large off-axis |
| CN102078968A (en) * | 2011-01-20 | 2011-06-01 | 天津大学 | Ultraprecise turning method of optical lens with incline |
| CN103722467A (en) * | 2013-12-30 | 2014-04-16 | 天津大学 | Method and device for determining grinding brittleness-ductility transformation critical cutting depth of hard and brittle material |
-
2017
- 2017-06-08 CN CN201710427481.8A patent/CN107139345B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685298A1 (en) * | 1994-04-12 | 1995-12-06 | Schneider GmbH + Co. KG | Procedure of and device for fabricating aspheric lens surfaces |
| CN101424933A (en) * | 2007-11-02 | 2009-05-06 | 鸿富锦精密工业（深圳）有限公司 | Inclined-axis aspheric mirror processing system and method |
| CN101670442A (en) * | 2009-09-22 | 2010-03-17 | 天津大学 | Method for improving shape accuracy and processing efficiency of off-axis aspheric mirror |
| CN102049530A (en) * | 2010-11-03 | 2011-05-11 | 天津大学 | Precision turning processing method for off-axis aspheric mirror with large off-axis |
| CN102078968A (en) * | 2011-01-20 | 2011-06-01 | 天津大学 | Ultraprecise turning method of optical lens with incline |
| CN103722467A (en) * | 2013-12-30 | 2014-04-16 | 天津大学 | Method and device for determining grinding brittleness-ductility transformation critical cutting depth of hard and brittle material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107139345A (en) | 2017-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107139345B (en) | Ultra-precision turning and forming method for complex curved surfaces of brittle materials | |
| CN107052462B (en) | The complex-curved fast response servo ultraprecise fly cutter cutting working method of fragile material | |
| CN107116707B (en) | A machining method for complex curved surfaces of brittle materials | |
| CN109176224B (en) | Grinding wheel path generation method for grinding free-form surface by single point of inclined shaft | |
| CN109129031B (en) | Grinding wheel path generation method for low-speed servo grinding of free-form surface | |
| CN106271493B (en) | A kind of prefabricated micro- texture assisting ultrasonic milling process method of laser and system of processing | |
| CN110732776A (en) | A kind of laser sharpening device and method | |
| CN110202478B (en) | Method for trimming circular arc diamond grinding wheel | |
| US7765903B2 (en) | Method and device for processing optical workpiece surfaces | |
| CN103722467A (en) | Method and device for determining grinding brittleness-ductility transformation critical cutting depth of hard and brittle material | |
| CN105643394A (en) | High-efficiency and high-precision advanced manufacturing technology process for medium or large caliber aspherical optical element | |
| WO2019237910A1 (en) | Rough-and-fine integrated progressive grinding method for non-slewing optical array | |
| CN107309657A (en) | The complex-curved ultraprecise of fragile material optics quickly cuts Combined machining forming method | |
| Sun et al. | An investigation in the ultra-precision fly cutting of freeform surfaces on brittle materials with high machining efficiency and low tool wear | |
| CN110293482A (en) | A kind of dressing method of arc-shaped skive | |
| CN102513899B (en) | Single-direction inclined-shaft profiling precision grinding method of array optical elements of micro circular troughs | |
| JP2009184066A (en) | Method of machining concave fresnel lens shape member, and concave fresnel lens shape member | |
| CN103481124B (en) | A Diamond Grinding Method Based on Complicated Trajectories | |
| CN108406450A (en) | A kind of super thick LED light lens processing technology | |
| CN106625036B (en) | Axisymmetric continuous surface resin base diamond grinding wheel superfine grinding method | |
| JP2010076032A (en) | Taper honing processing method and taper honing machine | |
| CN203679976U (en) | Device for determining grinding brittle-ductile conversion critical cutting depth of hard and brittle material | |
| CN112207291B (en) | Transition zone cutter path optimization ultra-precise turning method under slow cutter servo | |
| CN202517052U (en) | Lathe structure capable of polishing | |
| CN109299514A (en) | Grinding wheel path generation method for free-form surface in oblique axis grinding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |