Maintains and Uses Tools and Equipment Flashcards

1
Q

Torque wrench 4000lbs with two multipliers 4:1?

A

Como são dois multiplicadores 4:1 é = (4x4=16) então fica 16:1.

4000 ÷ 16 ou 250lbrs.

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2
Q

Cálculo de uma lâmina de serra com uma pulley 24” with center to center distance of 48”. What is the length of the blade?

A

L=D.π+2.C or

24 x 3.14 + 2(48) = 171.36

L = Pulley
C = Center distance

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3
Q

Broca para furadeira matelete

A

Hammer drill.

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4
Q

When removing the brittleness (fragilidade) band saw weld, what color can you see when heated?

A

Dull Red

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5
Q

Cutting tool accurate diameter hole?

A

Reamer (alargador)

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6
Q

To maintain the appropriate thickness (espessura) of band saw blade(lamina de serra fita). What be done to blade after the welding process?

A

The weld should be ground flush.

A solda deve ser nivelada.

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7
Q

What three types of hand taps are found in tapping set? Machos roscado

A
  1. Bottoming 1- 1,5 threads
  2. Plug Tap 3-5 thread
  3. Taper/Starter tap 7-10 threads
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8
Q

How do you need sharpening on a grinding wheel chinsel? Afiar uma talhadeira.

A

The cutting edge of the cinzel parallel the grinding.

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9
Q

Type of band saw.

A

Raker cortes rápido é suave.

Reto cortes mais rápidos mas com superficie áspera. Staringht

Ondulado corta melhor materiais finos como tubos. Wavy

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10
Q

Which of the following grinding wheel characteristics can lead to wheel glazing? Vitrificação no rebolo.

A

Rebolos duros. Hard grinding wheel.

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11
Q

Side clearance band saw blade

A

Gage é a espessura que suporta o conjunto

Set e a medida de um dente ao outro espessura

Folga lateral (side clearance) seria o (SET (o conjunto todo) - GAGE)÷2.
EX. SET=10. GAGE=5

(10-5)÷2 = 2,5

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12
Q

Type of tooth forms. Tipos de dente de serra?

A

The Hook/Claw - aplicação geral.

Buttress/Skyp Tooth - corta mais rápido e dura mais.

Precision/Standard - melhor acabamento e maior precisão.

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13
Q

Código do rebolo A60K8V

A

A - tipo de abrasivo (Abrasive)

60 - Granulometria (Grain)

K - Dureza (Grade)

8 - Estrutura (Structure)

V - Tipo de ligação (Bond)

M - informações do fabricante.

AGGSBM

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14
Q

Band saw blade break the first use?

A

The weld was not annealed (recozida)

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15
Q

Type of drill

A

Furadeira sensível - Sensitive Drill Press - acionamento por correia.

Base magnética - Magnetic Base Drill Press - para serviços leves.

Furação vertical - Upright Drill Press - para serviços pesados alimentada por engrenagem.

Braço Radial - Radial Arm Drill - para peças maiores.

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16
Q

Pitch

A

Número de dentes por polegada “TPI’’

17
Q

For smooth and accurate cuts a hacksaw blade what is the minimum pitch?

A

Must have at minimum 2-3 teeth in contact with the workpiece at all times.

18
Q

What is the minimum pitch for a Hacksaw Blade when cutting metal that is 1/16”?

A

Como são nescessarios 2 TPI mínimo então 16x2 = 32TPI.

19
Q

In general, what type of grinding wheel should be employed with softer metals?

A

Softer metals dull abrasive much slower allowing them to be employed longer. Therefore, we employ a harder wheel (stronger bond to the abrasives) to hang onto the grains longer. Um rebolo mais duro para metais macios.

20
Q

Before mounting any grinding wheel?

A

Before mounting any grinding wheel:
Verify that the wheel is rated for the grinder RPM or greater.
Verify that the blotter paper is on both sides of the wheel.
Verify that the wheel passes the “Ring” test.

21
Q

Machine Taps can be found in 3 main types:

A

1 - Spiral Point - Para furos passantes e de produção.

2 - Spiral Flute - Puxam o cavaco para cima, ideal para furo cego.

3 - Roll - Macho laminador.

22
Q

Single cut File

A

Corte Simples: é ideal para Draw Filing porque proporciona um acabamento mais suave e uniforme na superfície do metal.

23
Q

Double cut Files

A

Lima de Corte Duplo Melhor para remover material rapidamente, mas tende a deixar um acabamento mais áspero.

24
Q

Curved Files

A

Utilizada para materiais macios como latão, alumínio e plastico

25
Q

Rasp Files

A

Para plástico e madeira, mas deixa a superfície áspera.