KR20140045509A - 강화유리의 가공방법 및 강화유리용 가공장치 - Google Patents
강화유리의 가공방법 및 강화유리용 가공장치 Download PDFInfo
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Abstract
가공구(8)에 의한 가진을, 그 가공구(8)의 진폭 및 진동수가 목표 진폭 및 목표 진동수에 각각 가까워지도록 피드백 제어하는 동시에, 그 목표 진폭 및 목표 진동수를, 강화유리(1)의 가공에 수반하는 이 강화유리(1)의 두께 방향 각 부분에 있어서 변화하는 값으로서 이 강화유리의 품질을 악화시키는 품질악화 발생치의 범위에 속하지 않는 것으로 설정한다. 게다가, 상기 피드백 제어에 있어서의 샘플주기로서 0.3 msec 이하의 소정 샘플주기를 사용한다. 이것에 의해, 가공구(8)의 가진시에, 기본적으로, 가공구(8)의 진폭 및 진동수가 품질악화 발생치의 범위에 속하지 않게 한다. 게다가, 0.3 msec 이하의 소정 샘플주기를 사용함으로써, 극히 빠른 타이밍으로 피드백 제어를 행하고, 강화유리(1)의 가공에 수반하여, 이 강화유리(1) 내부의 인장 응력의 개방 등, 가공중의 미세한 상태 변화가 생긴다고 하더라도, 그것에 대응(추종)시킨다.
Description
도 2는 실시 형태에 관한 초음파 진동 가공장치를 나타내는 전체 구성도.
도 3은 실시 형태에 관한 초음파 진동 가공장치에 있어서의 제어관계를 설명하는 설명도.
도 4는 가공구의 목표 진폭 8 μm, 피드백의 샘플주기(응답속도) 0.2 msec로 고정한 조건하에서, 가공구의 목표 진동수를 변화시켰을 때의 실험 결과(가공실험 1의 실험 결과)를 나타내는 도면.
도 5는 가공구의 목표 진동수 63 kHz, 피드백의 샘플주기(응답속도) 0.2 msec로 고정한 조건하에서, 가공구의 목표 진폭을 변화시켰을 때의 실험 결과(가공실험 2의 실험 결과)를 나타내는 도면.
도 6은 가공구의 목표 진폭 8 μm, 가공구의 목표 진동수 63 kHz로 고정한 조건하에서, 피드백 제어의 샘플주기(응답속도)를 변화시켰을 때의 실험 결과(가공실험 3의 실험 결과)를 나타내는 도면.
도 7은 피드백의 샘플주기(응답속도)와 가공성공률과의 관계를 나타내는 도면.
도 8은 가공 대상인 강화유리의 적층체를 설명하는 설명도.
도 9는 고정대(固定台) 상에 강화유리의 적층체가 세트 된 상태를 설명하는 설명도.
도 10은 강화유리의 적층체에 대한 절출(切出) 가공을 설명하는 설명도.
도 11은 적층블록에 대한 장공(長孔), 각공(角孔)의 가공을 설명하는 설명도.
도 12는 적층블록의 외주면 등에 대한 연삭가공을 설명하는 설명도.
도 13은 휴대단말용 보호유리를 나타내는 도면.
도 14는 도 13의 A부를 나타내는 확대 사진도(배율: 270배)
도 15는 도 13의 B부를 나타내는 확대 사진도(배율: 270배)
도 16은 도 13의 C부를 나타내는 확대 사진도(배율: 270배)
도 17은 도 13의 D부를 나타내는 확대 사진도(배율: 270배)
도 18은 도 13의 E부를 나타내는 확대 사진도(배율: 270배)
도 19는 비교 예에 관한 휴대단말용 보호유리에 있어서의 도 13의 A부에 상당하는 부분을 나타내는 확대 사진도(배율: 270배)
도 20은 비교 예에 관한 휴대단말용 보호유리에 있어서의 도 13의 B부에 상당하는 부분을 나타내는 확대 사진도(배율: 270배)
도 21은 비교 예에 관한 휴대단말용 보호유리에 있어서의 도 13의 C부에 상당하는 부분을 나타내는 확대 사진도(배율: 270배)
도 22는 비교 예에 관한 휴대단말용 보호유리에 있어서의 도 13의 D부에 상당하는 부분을 나타내는 확대 사진도(배율: 90배)
1A: 적층체 (적층유리군)
1a: 적층블록 (적층유리군)
3: 표면 강화층
4: 초음파 진동가공장치
7: 가진 장치 (가진 기구)
8: 가공구
9: 모터 (회전 구동원)
16: 초음파 발진기 (가진 조정수단)
U: 제어유닛 (제어수단)
Claims (7)
- 가공구를 가진시키면서 회전시킨 상태하에서, 이 가공구로써, 표면 강화층을 가지는 강화유리에 대하여 가공을 행하는 강화유리의 가공방법에 있어서,
상기 강화유리에 대한 상기 가공구에 의한 가진을, 이 가공구의 진폭 및 진동수가 목표 진폭 및 목표 진동수에 각각 가까워지도록 피드백 제어하는 동시에, 이 목표 진폭 및 목표 진동수를, 이 강화유리의 가공에 수반하는 이 강화유리의 두께 방향 각 부분에 있어서 변화하는 값으로서 이 강화유리의 품질을 악화시키는 품질악화 발생치의 범위에 속하지 않는 것으로 각각 설정하고,
게다가, 상기 피드백 제어에 있어서의 샘플주기로서 0.3 msec 이하의 소정 샘플주기를 사용하는 것을 특징으로 하는 강화유리의 가공방법.
- 제 1항에 있어서,
상기 목표 진폭을 3 μm ~ 9 μm 범위의 소정 진폭으로 하는 동시에, 상기 목표 진동수를 60 kHz ~ 64 kHz 범위의 소정 진동수로 하는 것을 특징으로 하는 강화유리의 가공방법.
- 제 1항 또는 제 2항에 있어서,
상기 가공구의 회전수를, 2000 rpm ~ 30000 rpm 범위 내의 소정 회전수로 하는 것을 특징으로 하는 강화유리의 가공방법.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서,
상기 표면 강화층을 가지는 강화유리가, 이 강화유리를 복수 매 적층하여 구성되는 적층 유리군을 포함하고 있는 것을 특징으로 하는 강화유리의 가공방법.
- 가공구를 가진시키면서 회전시킨 상태하에서, 이 가공구로써, 표면 강화층을 가지는 강화유리에 대하여 가공을 행하는 강화유리용 가공장치에 있어서,
상기 가공구를 상기 강화유리를 향하여 가진시키는 가진기구와,
상기 가진기구를 조정하는 가진조정수단과,
상기 가진조정수단을 제어하여, 상기 강화유리에 대한 상기 가공구에 의한 가진을, 이 가공구의 진폭 및 진동수가 목표 진폭 및 목표 진동수에 각각 가까워지도록 피드백 제어하는 동시에, 이 목표 진폭 및 목표 진동수를, 상기 강화유리의 가공에 수반하는 이 강화유리의 두께 방향 각 부분에 있어서 변화하는 값으로서 이 강화유리의 품질을 악화시키는 품질악화 발생치의 범위에 속하지 않는 것으로 설정하고, 또한, 상기 피드백 제어를, 0.3 msec 이하의 소정 샘플주기마다 실행시키는 제어수단을 구비하고 있는 것을 특징으로 하는 강화유리용 가공장치. - 제 5항에 있어서,
상기 제어수단은, 상기 목표 진폭을 3 μm ~ 9 μm 범위의 소정 진폭으로 설정하고 있는 동시에, 상기 목표 진동수를 60 kHz ~ 64 kHz 범위의 소정 진동수로 설정하고 있는 것을 특징으로 하는 강화유리용 가공장치.
- 제 5항 또는 제 6항에 있어서,
상기 제어수단은, 상기 가공구의 회전수를, 2000 rpm ~ 30000 rpm 범위 내의 소정 회전수가 되도록 설정되어 있는 것을 특징으로 하는 강화유리용 가공장치.
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| PCT/JP2012/072137 WO2014033905A1 (ja) | 2012-08-31 | 2012-08-31 | 強化ガラスの加工方法及び強化ガラス用加工装置 |
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| KR1020157004674A Expired - Fee Related KR101562769B1 (ko) | 2012-08-31 | 2013-07-31 | 강화 유리용 가공구, 강화 유리용 가공 장치 및 강화 유리용 가공구의 사용 방법 |
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| KR20160027445A (ko) | 2014-08-29 | 2016-03-10 | 주식회사 태성기연 | 샌드 브라스트방식의 강화유리 절단장치 |
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