ผลการค้นหา

ค้นเจอ 463 รายการ

Broaching 2

(english) Multiple shaving, accomplished by pushing a tool with stepped cutting edges along the piece, particularly through holes.

Blister 2

(english) A defect in metal, on or near the surface, resulting from the expansion of gas in a subsurface zone. Very small blisters are called pinheads or pepper blisters.

Burnishing 2

(english) Smoothing surfaces through friction between the material and material such as hardened metal media.

Blank 2

(english) A piece of stock (also call a “slug” or “multiple”) from which a forging is to be made.

Abrasive 2

(english) Natural – sandstone,emery,corundum,diamonds, or Artificial – silicon carbide,aluminum oxide – material used for making grinding wheels,andpaper,abrasive and lapping compunds.

Burning 2

(english) Heating a metal beyond the temperature limits allowable for the desired heat treatment, or beyond the point where serious oxidation or other detrimental action begins.

Aging 2

(english) A change in properties that occurs at ambient or moderately elevated temperatures after hot working or a heat treating operation (quench aging in ferrous alloys), or after a cold working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but does not involve a change in chemical composition. In a metal or alloy, a change in properties that generally occurs slowly at room temperature and more rapidly at higher temperatures.

Blowhole 2

(english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets.

interval

ระยะห่างหรือช่องว่างระหว่างกัน, ความแตกต่างกัน, ช่องโหว่

local vent

ช่องระบายอากาศเสีย, ช่องระบายลม

corridor

ช่องทางเดิน [โยธา] ช่องผ่าน, เฉลียง [ช่างก่อสร้าง]

culvert

ช่องระบายน้ำใต้ผิวทาง, ช่องลอด

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