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작성자빅뱅맘 조회 33회 작성일 2021-10-17 10:15:15 댓글 0

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[대한산업안전협회]탁상용 연삭기 안전교육

대한산업안전협회 원격교육
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1981 Powerex Bench Grinder Restoration

I got this grinder on Facebook Marketplace for next to nothing. Brought back to life looking as good as new (if not better)

I hope you enjoy the video.

If you have any suggestions for improvement, or compliments share them below!

Please leave a like if you did like the video, please subscribe and feel free to comment your thoughts and as always thank you for watching.

More info on grinders and grinders in general.

A grinding machine, often shortened to grinder, is one of the power tools or machine tools used for grinding, it is a type of machining using an abrasive wheel as the cutting tool. Each grain of abrasive on the wheel's surface cuts a small chip from the workpiece via shear deformation.

Grinding is used to finish workpieces that must show high surface quality (e.g., low surface roughness) and high accuracy of shape and dimension. As the accuracy in dimensions in grinding is of the order of 0.000025 mm, in most applications, it tends to be a finishing operation and removes comparatively little metal, about 0.25 to 0.50 mm depth. However, there are some roughing applications in which grinding removes high volumes of metal quite rapidly. Thus, grinding is a diverse field.

These machines include the:

*Belt grinder, which is usually used as a machining method to process metals and other materials, with the aid of coated abrasives. Analogous to a belt sander (which itself is often used for wood but sometimes metal). Belt grinding is a versatile process suitable for all kinds of applications, including finishing, deburring, and stock removal.

Bench grinder, which usually has two wheels of different grain sizes for roughing and finishing operations and is secured to a workbench or floor stand. Its uses include shaping tool bits or various tools that need to be made or repaired. Bench grinders are manually operated.

*Cylindrical grinder, which includes both the types that use centers and the centerless types. A cylindrical grinder may have multiple grinding wheels. The workpiece is rotated and fed past the wheel(s) to form a cylinder. It is used to make precision rods, tubes, bearing races, bushings, and many other parts.

*Surface grinder, which has a head that is lowered to a workpiece, which is moved back and forth under the grinding wheel on a table that typically has a controllable permanent magnet (magnetic chuck) for use with magnetic stock (especially ferrous stock) but can have a vacuum chuck or other fixture means. The most common surface grinders have a grinding wheel rotating on a horizontal axis cutting around the circumference of the grinding wheel. Rotary surface grinders, commonly known as "Blanchard" style grinders, have a grinding head that rotates the grinding wheel on a vertical axis cutting on the end face of the grinding wheel, while a table rotates the workpiece in the opposite direction underneath. This type of machine removes large amounts of material and grinds flat surfaces with noted spiral grind marks. It can also be used to make and sharpen metal stamping die sets, flat shear blades, fixture bases or any flat and parallel surfaces. Surface grinders can be manually operated or have CNC controls.

*Tool and cutter grinder, which usually can perform the minor function of the drill bit grinder, or other specialist toolroom grinding operations.
Jig grinder, which as the name implies, has a variety of uses when finishing jigs, dies, and fixtures. Its primary function is in the realm of grinding holes for drill bushings and grinding pins. It can also be used for complex surface grinding to finish work started on a mill.

*Gear grinder, which is usually employed as the final machining process when manufacturing a high-precision gear. The primary function of these machines is to remove the remaining few thousandths of an inch of material left by other manufacturing methods (such as gashing or hobbing).

*Centre grinder, which is usually employed as a machining process when manufacturing all kinds of high-precision shafts. The primary function of these machines is to grind the centers of a shaft very precisely. Accurate round center holes on both sides ensure a position with high repeat accuracy on the live centers.

*Die grinder, which is a high-speed hand-held rotary tool with a small diameter grinding bit. They are typically air-driven (using compressed air), but can be driven with a small electric motor directly or via a flexible shaft.

*Angle grinder, another handheld power tool, often used in fabrication and construction work.
Robert Mailhos : This is the first time I've seen this done to a bench grinder. The blue one you use to buff and wire wheel clean up the small parts of the restoration of your projects you seem to have restored yourself if so thumb s up to you young man
ben candelaria : Nice restoration. I especially like the casting imperfections and how you left them visible -- no body filler to become problematic later. Thanks!
Austeration : Nice work. I have seen a few of these now and every time it inspires me to restore mine. Love the colour choice also
Marcelo : 18:10 the green wire (grounding) is necessary to be in contact with the metal, the paint must be removed from that contact point, the same is with the screws that join the motor with the base✅
Greeting from Argentina.
Paulo Lage : Grande trabalho, muito bom. Produto de qualidade. Esperava que mantivesse a cor original do corpo do motor ,ou seja laranja. Mas o preto ficou bom . Parabéns excelente trabalho.

탁상 샌딩기 만들기 /공구개조/연마기/ table sanding machine making / Дисковый шлифовальный станок

탁상 샌딩기 만들기 / table sanding machine making / Дисковый шлифовальный станок

#탁상샌딩기 #연마기 #그라인더
제일연마Cheilgrinding : 대단하시네요. 정말 잘 만드십니다
영상 잘 시청했습니다!
들나무 : 샌딩기요?
제 본업에 전 라인작업이
샌딩처리하는 건데 솔깃해서
끝까지 시청했습니다.ㅎ
손이 많이 가네요~
고도화 작업을 척척! 만능 인정^^
제 계통에 쓰이는
샌딩기가 아닌 것 같다능요~
가로수 : 완전 예술이네요~ㅎ
양삿갓티비 : 재주가 좋으신분 ㅡ햐
박카약 : 잘봤읍니다 구독 좋아요 누루고 갑니다

... 

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